NX-ID / IA / OD / OC / MD

A wide range of digital I/O units from general purpose use to high-speed synchronous control

Categories: , ,

Description

• High-speed I/O refreshing using the EtherCAT coupler

• I/O refreshing synchronized with the control cycle of the controller (synchronous refreshing)

• Time-stamp inputs and outputs anywhere in the EtherCAT network can be independently controlled with sub-microsecond accuracy

• Detachable terminals for easy maintenance

• Screwless Push-In Plus terminal block or MIL/Fujitsu connector speeds up installation

• Compact with a width of 12 mm per unit (connector type: 30 mm)

• 4, 8, 16 or 32 inputs for flexible I/O configuration (NX-ID/IA)

• 2, 4, 8, 16 or 32 outputs for flexible I/O configuration (NX-OD/OC)

• Connect to the CJ PLC using the EtherNet/IPTM bus coupler

Sysmac is a trademark or registered trademark of OMRON Corporation in Japan and other countries for OMRON factory automation products.
EtherCAT® is a registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
EtherNet/IP™ is a trademark of ODVA.
Other company names and product names in this document are the trademarks or registered trademarks of their respective companies.

Model Number Structure

NX-ID / IA / OD / OC / MD Lineup 1

Please click image to enlarge (open in a new window).

Ordering Information

Applicable standards

Ask your OMRON representative for the most recent applicable standards for each model.

Digital Input Units

Product Name Specification Model
Number
of points		 Internal
I/O
common		 Rated
input
voltage		 I/O refreshing method ON/OFF
response
time
DC Input Unit
3185_lu_2_1
(Screwless Clamping
Terminal Block,
12 mm Width)		 4 points NPN 12 to
24 VDC		 Switching Synchronous I/O
refreshing and Free-Run
refreshing		 20 μs max./
400 μs max.		 NX-ID3317
24 VDC 100 ns max./
100 ns max.		 NX-ID3343
Input refreshing with input
changed time only *1		 NX-ID3344
PNP 12 to
24 VDC		 Switching Synchronous I/O
refreshing and Free-Run
refreshing		 20 μs max./
400 μs max.		 NX-ID3417
24 VDC Input refreshing with input
changed time only *1		 100 ns max./
100 ns max.		 NX-ID3443
NX-ID3444
8 points NPN Switching Synchronous I/O
refreshing and Free-Run
refreshing		 20 μs max./
400 μs max.		 NX-ID4342
PNP NX-ID4442
16 points NPN NX-ID5342
PNP NX-ID5442
DC Input Unit
3185_lu_2_2
(M3 Screw Terminal
Block, 30 mm Width)		 16 points For both
NPN/PNP		 24 VDC Switching Synchronous I/O
refreshing and Free-Run
refreshing		 20 μs max./
400 μs max.		 NX-ID5142-1
DC Input Unit
3185_lu_2_3
(MIL Connector,
30 mm Width)		 16 points For both
NPN/PNP		 24 VDC Switching Synchronous I/O
refreshing and Free-Run
refreshing		 20 μs max./
400 μs max.		 NX-ID5142-5
32 points NX-ID6142-5
DC Input Unit
3185_lu_2_4
(Fujitsu Connector,
30 mm Width)		 32 points For both
NPN/PNP		 24 VDC Switching Synchronous I/O
refreshing and Free-Run
refreshing		 20 μs max./
400 μs max.		 NX-ID6142-6
AC Input Unit
3185_lu_2_5
(Screwless Clamping
Terminal Block,
12 mm Width)		 4 points 200 to 240 VAC,
50/60 Hz
(170 to 264 VAC,
±3 Hz)		 Free-Run refreshing 10 ms max./
40 ms max.		 NX-IA3117
*1. To use input refreshing with input changed time, the EtherCAT Coupler Unit with unit version 1.1 or later and the
Sysmac Studio version 1.07 or higher are required.

Digital Output Units

Product
Name		 Specification Model
Number
of
points		 Internal
I/O
common		 Maximum
value of load
current		 Rated
voltage		 I/O
refreshing
method		 ON/OFF
response
time
Transistor
Output Unit
3185_lu_3_1
(Screwless
Clamping
Terminal Block,
12 mm Width)		 2 NPN 0.5 A/point,
1 A/Unit		 24 VDC Output
refreshing with
specified time
stamp only *1		 300 ns max./
300 ns max.		 NX-OD2154
PNP NX-OD2258
4 NPN 0.5 A/point,
2 A/Unit		 12 to
24 VDC		 Switching
Synchronous
I/O refreshing
and Free-Run
refreshing		 0.1 ms max./
0.8 ms max.		 NX-OD3121
24 VDC 300 ns max./
300 ns max.		 NX-OD3153
PNP 0.5 ms max./
1.0 ms max.		 NX-OD3256
300 ns max./
300 ns max.		 NX-OD3257
2 A/point,
8 A/Unit		 0.5 ms max./
1.0 ms max.		 NX-OD3268
8 NPN 0.5 A/point,
4 A/Unit		 12 to
24 VDC		 0.1 ms max./
0.8 ms max.		 NX-OD4121
PNP 24 VDC 0.5 ms max./
1.0 ms max.		 NX-OD4256
16 NPN 12 to
24 VDC		 0.1 ms max./
0.8 ms max.		 NX-OD5121
PNP 24 VDC 0.5 ms max./
1.0 ms max.		 NX-OD5256
Transistor
Output Unit
3185_lu_3_2
(M3 Screw
Terminal Block,
30 mm Width)		 16 NPN 0.5 A/point,
5 A/Unit		 12 to
24 VDC		 Switching
Synchronous
I/O refreshing
and Free-Run
refreshing		 0.1 ms max./
0.8 ms max.		 NX-OD5121-1
PNP 24 VDC 0.5 ms max./
1.0 ms max.		 NX-OD5256-1
Transistor
Output Unit
3185_lu_3_3
(MIL Connector,
30 mm Width)		 16 NPN 0.5 A/point,
2 A/Unit		 12 to
24 VDC		 Switching
Synchronous
I/O refreshing
and Free-Run
refreshing		 0.1 ms max./
0.8 ms max.		 NX-OD5121-5
PNP 24 VDC 0.5 ms max./
1.0 ms max.		 NX-OD5256-5
32 NPN 0.5 A/point,
2 A/common,
4 A/Unit		 12 to
24 VDC		 0.1 ms max./
0.8 ms max.		 NX-OD6121-5
PNP 24 VDC 0.5 ms max./
1.0 ms max.		 NX-OD6256-5
Transistor
Output Unit
3185_lu_3_4
(Fujitsu
Connector,
30 mm Width)		 32 NPN 0.5 A/point,
2 A/common,
4 A/Unit		 12 to
24 VDC		 Switching
Synchronous
I/O refreshing
and Free-Run
refreshing		 0.1 ms max./
0.8 ms max.		 NX-OD6121-6
Relay Output
Unit
3185_lu_3_5
(Screwless
Clamping
Terminal Block,
12 mm Width/
24 mm Width)		 2 Relay type:
N.O.		 250 VAC/2 A (cosφ=1),
250 VAC/2 A (cosφ=0.4),
24 VDC/2 A, 4 A/Unit		 Free-Run
refreshing		 15 ms max./
15 ms max.		 NX-OC2633
Relay type:
N.O.+N.C.		 NX-OC2733
8 Relay type:
N.O.		 250 VAC/2 A (cosφ=1),
250 VAC/2 A (cosφ=0.4),
24 VDC/2 A, 8 A/Unit		 Free-Run
refreshing		 15ms max./
15ms max.		 NX-OC4633
*1. To use input refreshing with input changed time, the EtherCAT Coupler Unit with unit version 1.1 or later and the
Sysmac Studio version 1.07 or higher are required.

Digital Mixed I/O Units

Product
Name		 Specification Model
Number
of
points		 Internal I/O
common		 Maximum
value of load
current		 I/O
refreshing
method		 ON/OFF
response
time
DC Input/
Transistor
Output Unit
3185_lu_4_1
(MIL Connector,
30 mm Width)		 Outputs:
16 points
Inputs:
16 points		 Outputs: NPN
Inputs: For both
NPN/PNP		 Outputs:
12 to 24 VDC
Inputs: 24 VDCV		 Switching
Synchronous
I/O refreshing
and Free-Run
refreshing		 Outputs: 0.1 ms max./
0.8 ms max.
Inputs: 20 μs max./
400 μs max.		 NX-MD6121-5
Outputs: PNP
Inputs: For both
NPN/PNP		 Outputs:
24 VDC
Inputs: 24 VDC		 Outputs: 0.5 ms max./
1.0 ms max.
Inputs: 20 μs max./
400 μs max.		 NX-MD6256-5
Transistor
Output Unit
3185_lu_4_2
(Fujitsu
Connector,
30 mm Width)		 Outputs:
16
points
Inputs:
16
points		 Outputs: NPN
Inputs: For both
NPN/PNP		 Outputs:
12 to 24 VDC
Inputs: 24 VDC		 Switching
Synchronous
I/O refreshing
and Free-Run
refreshing		 Outputs: 0.1 ms max./
0.8 ms max.
Inputs: 20 μs max./
400 μs max.		 NX-MD6121-6

Optional Products

Product name Specification Model Standards
Unit/Terminal Block Coding Pins For 10 Units (Terminal Block: 30 pins, Unit: 30 pins) NX-AUX02 –
Product name Specification Model Standards
No. of
terminals		 Terminal number
indications		 Ground
terminal mark		 Terminal current
capacity
Terminal Block 8 A/B None 10 A NX-TBA082 —
12 NX-TBA122
16 NX-TBA162

Accessories

Not included.

 

General Specifications

Item Specification
Enclosure Mounted in a panel
Grounding method Ground to 100 Ω or less
Operating
environment		 Ambient operating temperature 0 to 55°C
Ambient operating humidity 10% to 95% (with no condensation or icing)
Atmosphere Must be free from corrosive gases.
Ambient storage temperature -25 to 70°C (with no condensation or icing)
Altitude 2,000 m max.
Pollution degree 2 or less: Conforms to JIS B3502 and IEC 61131-2.
Noise immunity 2 kV on power supply line (Conforms to IEC61000-4-4.)
Overvoltage category Category II: Conforms to JIS B3502 and IEC 61131-2.
EMC immunity level Zone B
Vibration resistance *1 Conforms to IEC 60068-2-6.
5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of
9.8 m/s2, 100 min each in X, Y, and Z directions
(10 sweeps of 10 min each = 100 min total)
Shock resistance *1 Conforms to IEC 60068-2-27. 147 m/s2, 3 times each in X, Y, and
Z directions
Applicable standards *2 cULus: Listed (UL508) or Listed (UL 61010-2-201), ANSI/ISA 12.12.01,
EU: EN 61131-2 or EN 61010-2-201, C-Tick or RCM, KC: KC Registration, NK, LR
*1. For the Relay Output Unit, refer to the Digital Input Unit Specifications.
*2. Consult your OMRON representative for the most recent applicable standards for each model.

Digital Input Unit Specifications

DC Input Unit (Screwless Clamping Terminal Block, 12 mm Width)

NX-ID3317

Unit name DC Input Unit Model NX-ID3317
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_2_1
 Internal I/O common NPN
Rated input voltage 12 to 24 VDC (9 to 28.8 VDC)
Input current 6 mA typical (at 24 VDC), rated current
ON voltage/ON current 9 VDC min./3 mA min. (between IOV
and each signal)
OFF voltage/OFF
current		 2 VDC max./1 mA max. (between IOV
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time Without filter, 0.25 ms, 0.5 ms, 1 ms
(factory setting), 2 ms, 4 ms, 8 ms, 16
ms, 32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.1 A/terminal max.,
IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_2_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_2_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID3343

Unit name DC Input Unit Model NX-ID3343
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_3_1
 Internal I/O common NPN
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./3 mA min. (between IOV
and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max. (between IOV
and each signal)
ON/OFF response
time		 100 ns max./100 ns max.
Input filter time Without filter, 1 μs, 2 μs, 4 μs, 8 μs
(factory setting), 16 μs, 32 μs, 64 μs,
128 μs, 256 μs
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for 1
minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.1 A/terminal max.,
IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 65 g max.
Circuit layout
3185_sp_3_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_3_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID3344

Unit name DC Input Unit Model NX-ID3344
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Input refreshing with input changed time
Indicators TS indicator,
input indicator

3185_sp_4_1
 Internal I/O common NPN
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./3 mA min. (between IOV
and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max. (between IOV
and each signal)
ON/OFF response
time		 100 ns max./100 ns max.
Input filter time No filter *
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for 1
minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.1 A/terminal max.,
IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 65 g max.
Circuit layout
3185_sp_4_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_4_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.
* This model does not support the input filter. If the Unit is susceptible to noise, take countermeasures such as separating
or shielding the Unit and signal lines from the noise source. Refer to NX-series Digital I/O Unit User’s Manual (W521) for
information on countermeasures.

NX-ID3417

Unit name DC Input Unit Model NX-ID3417
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_5_1
 Internal I/O common PNP
Rated input voltage 12 to 24 VDC (9 to 28.8 VDC)
Input current 6 mA typical (at 24 VDC), rated current
ON voltage/ON current 9 VDC min./3 mA min. (between IOG
and each signal)
OFF voltage/OFF
current		 2 VDC max./1 mA max. (between IOG
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time Without filter, 0.25 ms, 0.5 ms, 1 ms
(factory setting), 2 ms, 4 ms, 8 ms, 16
ms, 32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.1 A/terminal max.,
IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_5_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_5_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID3443

Unit name DC Input Unit Model NX-ID3443
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_6_1
 Internal I/O common PNP
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./3 mA min. (between IOG
and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max. (between IOG
and each signal)
ON/OFF response
time		 100 ns max./100 ns max.
Input filter time Without filter, 1 μs, 2 μs, 4 μs, 8 μs
(factory setting),16 μs, 32 μs, 64 μs,
128 μs, 256 μs
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.1 A/terminal max.,
IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 65 g max.
Circuit layout
3185_sp_6_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_6_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID3444

Unit name DC Input Unit Model NX-ID3444
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Input refreshing with input changed time
Indicators TS indicator,
input indicator
3185_sp_7_1		 Internal I/O common PNP
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./3 mA min.
(between IOG and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max.
(between IOG and each signal)
ON/OFF response
time		 100 ns max./100 ns max.
Input filter time No filter *
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.1 A/terminal max.,
IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 65 g max.
Circuit layout 3185_sp_7_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_7_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.
* This model does not support the input filter. If the Unit is susceptible to noise, take countermeasures such as separating
or shielding the Unit and signal lines from the noise source. Refer to NX-series Digital I/O Unit User’s Manual (W521) for
information on countermeasures.

NX-ID4342

Unit name DC Input Unit Model NX-ID4342
Number of points 8 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_8_1
 Internal I/O common NPN
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./3 mA min. (between IOG
and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max. (between IOG
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time Without filter, 0.25 ms, 0.5 ms, 1 ms
(factory setting), 2 ms, 4 ms, 8 ms, 16
ms, 32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_8_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_8_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID4442

Unit name DC Input Unit Model NX-ID4442
Number of points 8 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_9_1
 Internal I/O common PNP
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./3 mA min. (between IOG
and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max. (between IOG
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time Without filter, 0.25 ms, 0.5 ms, 1 ms
(factory setting), 2 ms, 4 ms, 8 ms, 16
ms, 32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOG: 0.1 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_9_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_9_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID5342

Unit name DC Input Unit Model NX-ID5342
Number of points 16 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_10_1
 Internal I/O common NPN
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./2 mA min. (between IOG
and each signal)
OFF voltage/OFF
current		 5 VDC max./0.5 mA max. (between IOG
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time Without filter, 0.25 ms, 0.5 ms, 1 ms
(factory setting), 2 ms, 4 ms, 8 ms, 16
ms, 32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_10_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_10_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID5442

Unit name DC Input Unit Model NX-ID5442
Number of points 16 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_11_1
 Internal I/O common PNP
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 3.5 mA typical (at 24 VDC), rated
current
ON voltage/ON current 15 VDC min./2 mA min. (between IOG
and each signal)
OFF voltage/OFF
current		 5 VDC max./0.5 mA max. (between IOG
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time Without filter, 0.25 ms, 0.5 ms, 1 ms
(factory setting), 2 ms, 4 ms, 8 ms, 16
ms, 32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_11_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_11_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

DC Input Unit (M3 Screw Terminal Block, 30 mm Width)

NX-ID5142-1

Unit name DC Input Unit Model NX-ID5142-1
Number of points 16 points External connection
terminals		 M3 screw terminal block (18 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
input indicator
3185_sp_12_1		 Internal I/O common For both NPN/PNP
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 7 mA typical (at 24 VDC)
ON voltage/ON current 15 VDC min./3 mA min. (between COM
and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max. (between COM
and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time No filter, 0.25 ms, 0.5 ms, 1 ms (default),
2 ms, 4 ms, 8 ms, 16 ms, 32 ms, 64 ms,
128 ms, 256 ms
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.85 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 125 g max.
Circuit layout 3185_sp_12_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_12_3
Terminal
connection diagram
3185_sp_12_4
• The polarity of the input power supply can be connected in either direction.
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

DC Input Unit (MIL Connector, 30 mm Width)

NX-ID5142-5

Unit name DC Input Unit Model NX-ID5142-5
Number of points 16 points External connection
terminals		 MIL connector (20 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
input indicators
3185_sp_13_1		 Internal I/O common For both NPN/PNP
Rated input voltage 24 VDC (15 to 28.8 VDC)
Input current 7 mA typical (at 24 VDC)
ON voltage/ON current 15 VDC min./3 mA min.
(between COM and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max.
(between COM and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time No filter, 0.25 ms, 0.5 ms, 1 ms
(default), 2 ms, 4 ms, 8 ms, 16 ms,
32 ms, 64 ms, 128 ms, 256 ms
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.85 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 85 g max.
Circuit layout 3185_sp_13_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_13_3
Terminal
connection diagram		 3185_sp_13_4
• The polarity of the input power supply can be connected in either direction.
• Be sure to wire both pins 3 and 4 (COM), and set the same polarity for both pins.
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-ID6142-5

Unit name DC Input Unit Model NX-ID6142-5
Number of points 32 points External connection
terminals		 MIL connector (40 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
input indicators
3185_sp_14_1		 Internal I/O common For both NPN/PNP
Rated input voltage 24 VDC (19 to 28.8 VDC)
Input current 4.1 mA typical (24 VDC)
ON voltage/ON current 19 VDC min./3 mA min.
(between COM and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max.
(between COM and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time No filter, 0.25 ms, 0.5 ms, 1 ms
(default), 2 ms, 4 ms, 8 ms, 16 ms,
32 ms, 64 ms, 128 ms, 256 ms
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.60 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 90 g max.
Circuit layout 3185_sp_14_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_14_3
Terminal
connection diagram
3185_sp_14_4
• The polarity of the input power supply can be connected in either direction.
• Be sure to wire both pins 23 and 24 (COM0), and set the same polarity for both pins.
• Be sure to wire both pins 3 and 4 (COM1), and set the same polarity for both pins.
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

DC Input Unit (Fujitsu Connector, 30 mm Width)

NX-ID6142-6

Unit name DC Input Unit Model NX-ID6142-6
Number of points 32 points External connection
terminals		 Fujitsu connector (40 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
input indicator
3185_sp_15_1		 Internal I/O common For both NPN/PNP
Rated input voltage 24 VDC (19 to 28.8 VDC)
Input current 4.1 mA typical (24 VDC)
ON voltage/ON current 19 VDC min./3 mA min.
(between COM and each signal)
OFF voltage/OFF
current		 5 VDC max./1 mA max.
(between COM and each signal)
ON/OFF response
time		 20 μs max./400 μs max.
Input filter time No filter, 0.25 ms, 0.5 ms, 1 ms (default),
2 ms, 4 ms, 8 ms, 16 ms, 32 ms, 64 ms,
128 ms, 256 ms
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.95 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 90 g max.
Circuit layout 3185_sp_15_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_15_3
Terminal
connection diagram
3185_sp_15_4
• The polarity of the input power supply can be connected in either direction.
• Be sure to wire both pins A9 and A18 (COM0), and set the same polarity for both pins.
• Be sure to wire both pins B9 and B18 (COM1), and set the same polarity for both pins.
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

AC Input Unit (Screwless Clamping Terminal Block, 12 mm Width)

NX-IA3117

Unit name AC Input Unit Model NX-IA3117
Number of points 4 points,
independent contacts		 External connection
terminals		 Screwless clamping terminal block (8
terminals)
Capacity Free-Run refreshing
Indicators TS indicator,
input indicator

3185_sp_16_1
 Internal I/O common No polarity
Rated input voltage 200 to 240 VAC, 50/60 Hz (170 to
264 VAC, ±3 Hz)
Input current 9 mA typical (at 200 VAC, 50 Hz)
11 mA typical (at 200 VAC, 60 Hz)
ON voltage/
ON current		 120 VAC min./4 mA min.
OFF voltage/
OFF current		 40 VAC max./2 mA max.
ON/OFF response time 10 ms max./40 ms max.
Input filter time No filter, 0.25 ms, 0.5 ms, 1 ms
(default), 2 ms, 4 ms, 8 ms, 16 ms,
32 ms, 64 ms, 128 ms, 256 ms
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 Between each AC input
circuit: 20 MΩ min. (at 500
VDC)
Between the external
terminals and the functional
ground terminal: 20 MΩ min.
(at 500 VDC)
Between the external
terminals and internal
circuits: 20 MΩ min. (at 500
VDC)
Between the internal circuit
and the functional ground
terminal: 20 MΩ min. (at 100
VDC)		 Dielectric strength Between each AC input circuit:
AC3700V VAC for 1 min at a leakage
current of 5 mA max.
Between the external terminals and
functional ground terminal: 2300 VAC
for 1 min at a leakage current of 5 mA
max.
Between the external terminals and
internal circuits: 2300 VAC for 1 min
at a leakage current of 5 mA max.
Between the internal circuit and the
functional ground terminal: 510 VAC
for 1 min at a leakage current of 5 mA
max.
I/O power supply
method		 Supplied from external
source.		 Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.80 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 60 g max.
Circuit layout
3185_sp_16_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_16_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

Digital Output Unit Specifications

Transistor Output Unit (Screwless Clamping Terminal Block, 12 mm Width)

NX-OD2154

Unit name Transistor Output Unit Model NX-OD2154
Number of points 2 points External connection
terminals		 Screwless clamping terminal block
(8 terminals)
I/O refreshing
method		 Output refreshing with specified time stamp
Indicators TS indicator,
output indicator
3185_sp_17_1		 Internal I/O common NPN
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 1 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 300 ns max./300 ns max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.,
IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit
0.85 W max.
• Connected to a Communi-
cations Coupler Unit
0.45 W max.		 I/O current
consumption		 30 mA max.
Weight 70 g max.
Circuit layout
3185_sp_17_2

This unit uses a push-pull output circuit.
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_17_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD2258

Unit name Transistor Output Unit Model NX-OD2258
Number of points 2 points External connection
terminals		 Screwless clamping terminal block
(8 terminals)
I/O refreshing
method		 Output refreshing with specified time stamp
Indicators TS indicator,
output indicator
3185_sp_18_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 1 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 300 ns max./300 ns max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.,
IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit
0.85 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 I/O current
consumption		 40 mA max.
Weight 70 g max.
Circuit layout
3185_sp_18_2

This unit uses a push-pull output circuit.
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_18_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

NX-OD3121

Unit name Transistor Output Unit Model NX-OD3121
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_19_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.,
IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 I/O current
consumption		 10 mA max.
Weight 70 g max.
Circuit layout 3185_sp_19_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_19_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD3153

Unit name Transistor Output Unit Model NX-OD3153
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_20_1		 Internal I/O common NPN
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 300 ns max./300 ns max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.,
IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 I/O current
consumption		 30 mA max.
Weight 70 g max.
Circuit layout
3185_sp_20_2

This unit uses a push-pull output circuit.
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_20_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD3256

Unit name Transistor Output Unit Model NX-OD3256
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_21_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.,
IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 I/O current
consumption		 20 mA max.
Weight 70 g max.
Circuit layout 3185_sp_21_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_21_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

NX-OD3257

Unit name Transistor Output Unit Model NX-OD3257
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (12
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_22_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 300 ns max./300 ns max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Digital isolator isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.,
IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.85 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 I/O current
consumption		 40 mA max.
Weight 70 g max.
Circuit layout
3185_sp_22_2

This unit uses a push-pull output circuit.
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_22_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

NX-OD3268

Unit name Transistor Output Unit Model NX-OD3268
Number of points 4 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_23_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 2 A/point, 8 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 IOV: 2 A/terminal max.,
IOG: 2 A/terminal max.,
COM (+V): 4 A/terminal max.,
0V: 4 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.85 W max.
• Connected to a Communi-
cations Coupler Unit
0.50 W max.		 Current
consumption from
I/O power supply		 20 mA max.
Weight 70 g max.
Circuit layout 3185_sp_23_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_23_3

• 0V has 2 terminals, so be sure to wire both terminals.
• COM (+V) has 2 terminals, so be sure to wire both terminals.
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

NX-OD4121

Unit name Transistor Output Unit Model NX-OD4121
Number of points 8 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_24_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOV: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.55 W max.		 I/O current
consumption		 10 mA max.
Weight 70 g max.
Circuit layout 3185_sp_24_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_24_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD4256

Unit name Transistor Output Unit Model NX-OD4256
Number of points 8 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_25_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 IOG: 0.5 A/terminal max.
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.00 W max.
• Connected to a Communi-
cations Coupler Unit
0.65 W max.		 I/O current
consumption		 30 mA max.
Weight 70 g max.
Circuit layout 3185_sp_25_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_25_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

NX-OD5121

Unit name Transistor Output Unit Model NX-OD5121
Number of points 16 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_26_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.00 W max.
• Connected to a Communi-
cations Coupler Unit
0.65 W max.		 I/O current
consumption		 20 mA max.
Weight 70 g max.
Circuit layout 3185_sp_26_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_26_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD5256

Unit name Transistor Output Unit Model NX-OD5256
Number of points 16 points External connection
terminals		 Screwless clamping terminal block (16
terminals)
I/O refreshing
method		 Selectable Synchronous I/O refreshing or Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_27_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 15 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from the NX bus Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.10 W max.
• Connected to a Communi-
cations Coupler Unit
0.70 W max.		 I/O current
consumption		 40 mA max.
Weight 70 g max.
Circuit layout 3185_sp_27_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_27_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

Transistor Output Unit (M3 Screw Terminal Block, 30 mm Width)

NX-OD5121-1

Unit name Transistor Output Unit Model NX-OD5121-1
Number of points 16 points External connection
terminals		 M3 screw terminal block (18 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_28_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 5 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA max.
I/O power supply
method		 Supply from the external
source		 Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.90 W max.
• Connected to a Communi-
cations Coupler Unit
0.60 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 125 g max.
Circuit layout 3185_sp_28_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_28_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD5256-1

Unit name Transistor Output Unit Model NX-OD5256-1
Number of points 16 points External connection
terminals		 M3 screw terminal block (18 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_29_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 20.4 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 5 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.95 W max.
• Connected to a Communi-
cations Coupler Unit
0.65 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 125 g max.
Circuit layout 3185_sp_29_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_29_3
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

Transistor Output Unit (MIL Connector, 30 mm Width)

NX-OD5121-5

Unit name Transistor Output Unit Model NX-OD5121-5
Number of points 16 points External connection
terminals		 MIL connector (20 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_30_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
0.95 W max.
• Connected to a Communi-
cations Coupler Unit
0.60 W max.		 Current
consumption from
I/O power supply		 30 mA max.
Weight 80 g max.
Circuit layout 3185_sp_30_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_30_3
• Be sure to wire both pins 3 and 4 (COM).
• Be sure to wire both pins 1 and 2 (+V).
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD5256-5

Unit name Transistor Output Unit Model NX-OD5256-5
Number of points 16 points External connection
terminals		 MIL connector (20 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_31_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 20.4 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supplied from external
source.		 Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.00 W max.
• Connected to a Communi-
cations Coupler Unit
0.70 W max.		 Current
consumption from
I/O power supply		 40 mA max.
Weight 85 g max.
Circuit layout 3185_sp_31_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_31_3
• Be sure to wire both pins 1 and 2 (COM (+V)).
• Be sure to wire both pins 3 and 4 (0V).
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

NX-OD6121-5

Unit name Transistor Output Unit Model NX-OD6121-5
Number of points 32 points External connection
terminals		 MIL connector (40 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_32_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/common, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.00 W max.
• Connected to a Communi-
cations Coupler Unit
0.80 W max.		 Current
consumption from
I/O power supply		 50 mA max.
Weight 90 g max.
Circuit layout 3185_sp_32_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_32_3
• Be sure to wire both pins 21 and 22 (+V0).
• Be sure to wire both pins 23 and 24 (COM0).
• Be sure to wire both pins 1 and 2 (+V1).
• Be sure to wire both pins 3 and 4 (COM1).
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

NX-OD6256-5

Unit name Transistor Output Unit Model NX-OD6256-5
Number of points 32 points External connection
terminals		 MIL connector (40 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_33_1		 Internal I/O common PNP
Rated voltage 24 VDC
Operating load
voltage range		 20.4 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/common, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.5 ms max./1.0 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA
max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.30 W max.
• Connected to a Communi-
cations Coupler Unit
1.00 W max.		 Current
consumption from
I/O power supply		 80 mA max.
Weight 95 g max.
Circuit layout 3185_sp_33_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram		 3185_sp_33_3
• Be sure to wire both pins 21 and 22 (COM0 (+V)).
• Be sure to wire both pins 1 and 2 (COM1 (+V)).
• Be sure to wire both pins 23 and 24 (0V0).
• Be sure to wire both pins 3 and 4 (0V1).
Disconnection/
Short-circuit
detection		 Not supported. Protective function With load short-circuit protection.

Transistor Output Unit (Fujitsu Connector, 30 mm Width)

NX-OD6121-6

Unit name Transistor Output Unit Model NX-OD6121-6
Number of points 32 points External connection
terminals		 Fujitsu connector (40 terminals)
I/O refreshing
method		 Switching Synchronous I/O refreshing and Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_34_1		 Internal I/O common NPN
Rated voltage 12 to 24 VDC
Operating load
voltage range		 10.2 to 28.8 VDC
Maximum value of
load current		 0.5 A/point, 2 A/common, 4 A/Unit
Maximum inrush
current		 4.0 A/point, 10 ms max.
Leakage current 0.1 mA max.
Residual voltage 1.5 V max.
ON/OFF response
time		 0.1 ms max./0.8 ms max.
Dimensions 30 (W) x 100 (H) x 71 (D) Isolation method Photocoupler isolation
Insulation
resistance		 20 MΩ min. between isolated
circuits (at 100 VDC)		 Dielectric strength 510 VAC between isolated circuits for
1 minute at a leakage current of 5 mA max.
I/O power supply
method		 Supply from external source Current capacity of
I/O power supply
terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.10 W max.
• Connected to a Communi-
cations Coupler Unit
0.80 W max.		 Current
consumption from
I/O power supply		 50 mA max.
Weight 90 g max.
Circuit layout 3185_sp_34_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection diagram
3185_sp_34_3

• Be sure to wire both pins A9 and A19 (COM0).
• Be sure to wire both pins B9 and B19 (COM1).
• Be sure to wire both pins A10 and A20 (+V0).
• Be sure to wire both pins B10 and B20 (+V1).
Disconnection/
Short-circuit
detection		 Not supported. Protective function Not supported.

Relay Output Unit (Screwless Clamping Terminal Block, 12 mm Width)

NX-OC2633

Unit name Relay Output Units Model NX-OC2633
Number of points 2 points, independent contacts External
connection
terminals		 Screwless clamping terminal block (8
terminals)
I/O refreshing
method		 Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_35_1		 Relay type N.O. contact
Maximum
switching capacity		 250 VAC/2 A (cosφ = 1),
250 VAC/2 A (cosφ = 0.4),
24 VDC/2 A, 4 A/Unit
Minimum
switching capacity		 5 VDC, 1 mA
Relay service life Electrical: 100,000 operations *
Mechanical: 20,000,000 operations		 ON/OFF response
time		 15 ms max./15 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Relay isolation
Insulation
resistance		 Between A1/B1 terminals and A3/B3
terminals: 20 MΩ min. (500 VDC)
Between the external terminals and
internal circuits: 20 MΩ min. (500
VDC)
Between the internal circuit and GR
terminal: 20 MΩ min. (100 VDC)
Between the external terminals and
GR terminal: 20 MΩ min. (500 VDC)		 Dielectric
strength		 Between A1/B1 terminals and A3/B3
terminals: 2300 VAC for 1 min at a
leakage current of 5 mA max.
Between the external terminals and
GR terminal: 2300 VAC for 1 min at a
leakage current of 5 mA max.
Between the external terminals and
internal circuits: 2300 VAC for 1 min
at a leakage current of 5 mA max.
Between the internal circuit and GR
terminal: 510 VAC for 1 min at a
leakage current of 5 mA max.
Vibration
resistance		 Conforms to IEC60068-2-6.
5 to 8.4 Hz with amplitude of 3.5 mm,
8.4 to 150 Hz, acceleration of 9.8
m/s2
100 min each in X, Y, and Z
directions
(10 sweeps of 10 min each = 100 min
total)		 Shock resistance 100 m/s2, 3 times each in X, Y, and
Z directions
I/O power supply
method		 Supply from external source Current capacity
of I/O power
supply terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.20 W max.
• Connected to a Communications
Coupler Unit
0.80 W max.		 I/O current
consumption		 No consumption
Weight 65 g max.
Circuit layout
3185_sp_35_2

You cannot replace the relay.
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection
diagram		 3185_sp_35_3
Disconnection/
Short-circuit
detection		 Not supported. Protective
function		 Not supported.

* Electrical service life will vary depending on the current value. Refer to “NX-series Digital I/O Units User’s Manual” for details.

NX-OC2733

Unit name Relay Output Unit Model NX-OC2733
Number of points 2 points, independent contacts External
connection
terminals		 Screwless clamping terminal block (8
terminals)
I/O refreshing
method		 Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_36_1		 Maximum
switching capacity		 250 VAC/2 A (cosφ = 1),
250 VAC/2 A (cosφ = 0.4),
24 VDC/2 A,
4 A/Unit
Minimum
switching capacity		 5 VDC, 10 mA
Relay service life Electrical: 100,000 operations
Mechanical: 20,000,000 operations		 ON/OFF response
time		 15 ms max./15 ms max.
Dimensions 12 (W) x 100 (H) x 71 (D) Isolation method Relay isolation
Insulation
resistance		 Between A1/3, B1/3 terminals and
A5/7, B5/7 terminals: 20 MΩ min.
(at 500 VDC)
Between the external terminals and
functional ground terminal: 20 MΩ
min. (at 500 VDC)
Between the external terminals and
internal circuits: 20 MΩ min. (at 500
VDC)
Between the internal circuit and the
functional ground terminal: 20 MΩ
min. (at 100 VDC)		 Dielectric
strength		 Between A1/3, B1/3 terminals and
A5/7, B5/7 terminals: 2300 VAC for
1 min at a leakage current of 5 mA
max.
Between the external terminals and
the functional ground terminal: 2300
VAC for 1 min at a leakage current
of 5 mA max.
Between the external terminals and
internal circuits: 2300 VAC for 1 min
at a leakage current of 5 mA max.
Between the internal circuit and the
functional ground terminal: 510 VAC
for 1 min at a leakage current of 5
mA max.
I/O power supply
method		 Supply from external source Current capacity
of I/O power
supply terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.30 W max.
• Connected to a Communications
Coupler Unit
0.95 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 70 g max.
Circuit layout 3185_sp_36_2
NO0 and NO1 are normal open contacts, and NC0 and NC1 are normal close contacts.
You cannot replace the relay.
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: No restrictions
Terminal
connection
diagram		 3185_sp_36_3
Disconnection/
Short-circuit
detection		 Not supported. Protective
function		 Not supported.

Relay Output Unit (Screwless Clamping Terminal Block, 24 mm Width)

NX-OC4633

Unit name Relay Output Unit Model NX-OC4633
Number of points 8 points, independent contacts External
connection
terminals		 Screwless clamping terminal block
(8 terminals x 2)
I/O refreshing
method		 Free-Run refreshing
Indicators TS indicator,
output indicator
3185_sp_37_1		 Relay type N.O. contact
Maximum
switching capacity		 250 VAC/2 A (cosφ = 1),
250 VAC/2 A (cosφ = 0.4),
24 VDC/2 A,
8 A/Unit
Minimum
switching capacity		 5 VDC, 1 mA
Relay service life Electrical: 100,000 operations*
Mechanical: 20,000,000 operations		 ON/OFF response
time		 15 ms max./15 ms max.
Dimensions 24 (W) x 100 (H) x 71 (D) Isolation method Relay isolation
Insulation
resistance		 Between output bits: 20 MΩ min.
(at 500 VDC)
Between the external terminals
and the functional ground terminal:
20 MΩ min. (at 500 VDC)
Between the external terminals and
internal circuits: 20 MΩ min.
(at 500 VDC)
Between the internal circuit and the
functional ground terminal: 20 MΩ
min. (at 100 VDC)		 Dielectric
strength		 Between output bits: 2300 VAC for
1 min at a leakage current of 5 mA
max.
Between the external terminals and
the functional ground terminal: 2300
VAC for 1 min at a leakage current
of 5 mA max.
Between the external terminals and
internal circuits: 2300 VAC for 1 min
at a leakage current of 5 mA max.
Between the internal circuit and the
functional ground terminal: 510 VAC
for 1 min at a leakage current of 5 mA
max.
Vibration
resistance		 Conforms to IEC 60068-2-6.
5 to 8.4 Hz with amplitude of 3.5 mm,
8.4 to 150 Hz, acceleration of 9.8 m/s2
100 min each in X, Y, and Z directions
(10 sweeps of 10 min each = 100 min
total)		 Shock resistance 100 m/s2, 3 times each in X, Y, and Z
directions
I/O power supply
method		 Supply from external source Current capacity
of I/O power
supply terminal		 Without I/O power supply terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
2.00 W max.
• Connected to a Communications
Coupler Unit
1.65 W max.		 Current
consumption from
I/O power supply		 No consumption
Weight 140 g max.
Circuit layout 3185_sp_37_2
Installation
orientation and
restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_37_3
Terminal
connection
diagram		 3185_sp_37_4

* Electrical service life will vary depending on the current value. Refer to “NX-series Digital I/O Units User’s Manual” for details.

DC Input/Transistor Output Unit (MIL Connector, 30 mm Width)

NX-MD6121-5

Unit name DC Input/Transistor Output
Unit		 Model NX-MD6121-5
Number of points 16 inputs/16 outputs External connection
terminals		 2 MIL connectors (20 terminals)
I/O refreshing method Switching Synchronous I/O refreshing and Free-Run refreshing
Output
section
(CN1)		 Internal I/O
common		 NPN Input
section
(CN2)		 Internal I/O
common		 For both NPN/PNP
Rated voltage 12 to 24 VDC Rated input
voltage		 24 VDC (15 to 28.8 VDC)
Operating load
voltage range		 10.2 to 28.8 VDC Input current 7 mA typical (at 24 VDC)
Maximum value
of load current		 0.5 A/point, 2 A/Unit ON voltage/
ON current		 15 VDC min./3 mA min.
(between COM and each signal)
Maximum
inrush current		 4.0 A/point, 10 ms max. OFF voltage/
OFF current		 5 VDC max./1 mA max.
(between COM and each signal)
Leakage
current		 0.1 mA max. ON/OFF
response time		 20 μs max./400 μs max.
Residual
voltage		 1.5 V max. Input filter
time		 No filter, 0.25 ms, 0.5 ms, 1 ms
(default), 2 ms, 4 ms, 8 ms,
16 ms, 32 ms, 64 ms, 128 ms,
256 ms
ON/OFF
response time		 0.1 ms max./0.8 ms max.
Indicators TS indicator, I/O indicators
3185_sp_38_1		 Dimensions 30 (W) x 100 (H) x 71 (D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric strength 510 VAC between isolated
circuits for 1 minute at a
leakage current of 5 mA max.
I/O power supply
method		 Supply from external source
Current capacity of
I/O power supply
terminal		 Without I/O power supply
terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.00 W max.
• Connected to a Communica-
tions Coupler Unit
0.70 W max.
Current consumption
from I/O power supply		 30 mA max.
Weight 105 g max.
Circuit layout 3185_sp_38_2
Installation orientation
and restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_38_3
Terminal connection
diagram		 3185_sp_38_4
Disconnection/Short-
circuit detection		 Not supported. Protective function Not supported.

NX-MD6256-5

Unit name DC Input/Transistor Output
Unit		 Model NX-MD6256-5
Number of points 16 inputs/16 outputs External connection
terminals		 2 MIL connectors (20 terminals)
I/O refreshing method Switching Synchronous I/O refreshing and Free-Run refreshing
Output
section
(CN1)		 Internal I/O
common		 PNP Input
section
(CN2)		 Internal I/O
common		 For both NPN/PNP
Rated voltage 24 VDC Rated input
voltage		 24 VDC (15 to 28.8 VDC)
Operating load
voltage range		 20.4 to 28.8 VDC Input current 7 mA typical (at 24 VDC)
Maximum value
of load current		 0.5 A/point, 2 A/Unit ON voltage/
ON current		 15 VDC min./3 mA min.
(between COM and each signal)
Maximum
inrush current		 4.0 A/point, 10 ms max. OFF voltage/
OFF current		 5 VDC max./1 mA max.
(between COM and each signal)
Leakage
current		 0.1 mA max. ON/OFF
response time		 20 μs max./400 μs max.
Residual
voltage		 1.5 V max. Input filter
time		 No filter, 0.25 ms, 0.5 ms, 1 ms
(default), 2 ms, 4 ms, 8 ms,
16 ms, 32 ms, 64 ms, 128 ms,
256 ms
ON/OFF
response time		 0.5 ms max./1.0 ms max.
Indicators TS indicator, I/O indicators
3185_sp_39_1		 Dimensions 30 (W) x 100 (H) x 71 (D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric strength 510 VAC between isolated
circuits for 1 minute at a
leakage current of 5 mA max.
I/O power supply
method		 Supply from external source
Current capacity of
I/O power supply
terminal		 Without I/O power supply
terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.10 W max.
• Connected to a Communica-
tions Coupler Unit
0.75 W max.
Current consumption
from I/O power supply		 40 mA max.
Weight 110 g max.
Circuit layout 3185_sp_39_2
Installation orientation
and restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_39_3
Terminal connection
diagram		 3185_sp_39_4
Disconnection/Short-
circuit detection		 Not supported. Protective function With load short-circuit
protection.

DC Input/Transistor Output Unit (Fujitsu Connector, 30 mm Width)

NX-MD6121-6

Unit name DC Input/Transistor Output Unit Model NX-MD6121-6
Number of points 16 inputs/16 outputs External connection
terminals		 2 Fujitsu connectors
(24 terminals)
I/O refreshing method Switching Synchronous I/O refreshing and Free-Run refreshing
Output
section
(CN1)		 Internal I/O
common		 NPN Input
section
(CN2)		 Internal I/O
common		 For both NPN/PNP
Rated voltage 12 to 24 VDC Rated input
voltage		 24 VDC (15 to 28.8 VDC)
Operating load
voltage range		 10.2 to 28.8 VDC Input current 7 mA typical (at 24 VDC)
Maximum value
of load current		 0.5 A/point, 2 A/Unit ON voltage/
ON current		 15 VDC min./3 mA min.
(between COM and each signal)
Maximum
inrush current		 4.0 A/point, 10 ms max. OFF voltage/
OFF current		 5 VDC max./1 mA max.
(between COM and each signal)
Leakage
current		 0.1 mA max. ON/OFF
response time		 20 μs max./400 μs max.
Residual
voltage		 1.5 V max. Input filter
time		 No filter, 0.25 ms, 0.5 ms, 1 ms
(default), 2 ms, 4 ms, 8 ms,
16 ms, 32 ms, 64 ms, 128 ms,
256 ms
ON/OFF
response time		 0.1 ms max./0.8 ms max.
Indicators TS indicator, I/O indicators
3185_sp_40_1		 Dimensions 30 (W) x 100 (H) x 71 (D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric strength 510 VAC between isolated
circuits for 1 minute at a
leakage current of 5 mA max.
I/O power supply
method		 Supply from external source
Current capacity of
I/O power supply
terminal		 Without I/O power supply
terminals
NX Unit power
consumption		 • Connected to a CPU Unit or
Communication Control Unit
1.00 W max.
• Connected to a Communi-
cations Coupler Unit
0.70 W max.
Current consumption
from I/O power supply		 30 mA max.
Weight 95 g max.
Circuit layout 3185_sp_40_2
Installation orientation
and restrictions		 Installation orientation:
• Connected to a CPU Unit or Communication Control Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: As shown in the following.
3185_sp_40_3
Terminal connection
diagram		 3185_sp_40_4
Disconnection/Short-
circuit detection		 Not supported. Protective function Not supported.

Version Information

Connected to a CPU Unit

Refer to the user’s manual for the CPU Unit for details on the CPU Units to which NX Units can be connected.

NX Unit Corresponding unit versions/versions
Model Unit version CPU Unit Sysmac Studio
NX-ID3317 Ver.1.0 Ver.1.13 Ver.1.17
NX-ID3343
NX-ID3344
NX-ID3417
NX-ID3443
NX-ID3444
NX-ID4342
NX-ID4442
NX-ID5142-1
NX-ID5142-5
NX-ID5342
NX-ID5442
NX-ID6142-5
NX-ID6142-6
NX-IA3117
NX-OD2154
NX-OD2258
NX-OD3121
NX-OD3153
NX-OD3256
NX-OD3257
NX-OD3268
NX-OD4121
NX-OD4256
NX-OD5121
NX-OD5121-1
NX-OD5121-5
NX-OD5256
NX-OD5256-1
NX-OD5256-5
NX-OD6121-5
NX-OD6121-6
NX-OD6256-5
NX-OC2633
NX-OC2733
NX-OC4633
NX-MD6121-5
NX-MD6121-6
NX-MD6256-5
Note: Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
support is provided by the oldest available version after the specified version. Refer to the user’s manuals for the
specific Units for the relation between models and versions.

Connected to an EtherCAT Coupler Unit

NX Unit Corresponding unit versions/versions
Model Unit version EtherCAT Coupler Unit CPU Unit or Industrial PC Sysmac Studio
NX-ID3317 Ver.1.0 Ver.1.0 Ver.1.05 Ver.1.06
NX-ID3343
NX-ID3344 Ver.1.1 Ver.1.06 * Ver.1.07
NX-ID3417 Ver.1.0 Ver.1.05 Ver.1.06
NX-ID3443
NX-ID3444 Ver.1.1 Ver.1.06 * Ver.1.07
NX-ID4342 Ver.1.0 Ver.1.05 Ver.1.06
NX-ID4442
NX-ID5142-1 Ver.1.13
NX-ID5142-5 Ver.1.10
NX-ID5342 Ver.1.06
NX-ID5442
NX-ID6142-5 Ver.1.10
NX-ID6142-6 Ver.1.13
NX-IA3117 Ver.1.08
NX-OD2154 Ver.1.0 Ver.1.1 Ver.1.06 * Ver.1.07
NX-OD2258
NX-OD3121 Ver.1.0 Ver.1.05 Ver.1.06
NX-OD3153
NX-OD3256
NX-OD3257
NX-OD3268 Ver.1.13
NX-OD4121 Ver.1.06
NX-OD4256
NX-OD5121
NX-OD5121-1 Ver.1.13
NX-OD5121-5 Ver.1.10
NX-OD5256 Ver.1.06
NX-OD5256-1 Ver.1.13
NX-OD5256-5 Ver.1.10
NX-OD6121-5
NX-OD6121-6 Ver.1.13
NX-OD6256-5 Ver.1.10
NX-OC2633 Ver.1.06
NX-OC2733 Ver.1.08
NX-OC4633 Ver.1.17
NX-MD6121-5 Ver.1.0 Ver.1.0 Ver.1.05 Ver.1.10
NX-MD6121-6 Ver.1.13
NX-MD6256-5 Ver.1.10
Note: Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
support is provided by the oldest available version after the specified version. Refer to the user’s manuals for the
specific Units for the relation between models and versions.
* The instructions for time stamp refreshing are supported by CPU Units with unit version 1.06 or later. If you do not use
instructions for time stamp refreshing, you can use version 1.05. Refer to the NJ/NX-series Instructions Reference Manual
(Cat. No. W502) for details on the instructions for time stamp refreshing.

Connected to an EtherNet/IP Coupler Unit

NX Unit Corresponding unit versions/versions
Model Unit
version		 Application with an NJ/NX/NY-series
Controller *1		 Application with a CS/CJ/CP-series PLC
*2
EtherNet/IP
Coupler Unit		 CPU Unit or
Industrial PC		 Sysmac
Studio		 EtherNet/IP
Coupler Unit		 Sysmac
Studio		 NX-IO
Configurator *3
NX-ID3317 Ver. 1.0 Ver. 1.2 Ver. 1.14 Ver. 1.19 Ver. 1.0 Ver. 1.10 Ver. 1.00
NX-ID3343
NX-ID3344 — — — — — —
NX-ID3417 Ver. 1.2 Ver. 1.14 Ver. 1.19 Ver. 1.0 Ver. 1.10 Ver. 1.00
NX-ID3443
NX-ID3444 — — — — — —
NX-ID4342 Ver. 1.2 Ver. 1.14 Ver. 1.19 Ver. 1.0 Ver. 1.10 Ver. 1.00
NX-ID4442
NX-ID5142-1 Ver. 1.13
NX-ID5142-5 Ver. 1.10
NX-ID5342
NX-ID5442
NX-ID6142-5
NX-ID6142-6 Ver. 1.13
NX-IA3117 Ver. 1.10
NX-OD2154 — — — — — —
NX-OD2258
NX-OD3121 Ver. 1.2 Ver. 1.14 Ver. 1.19 Ver. 1.0 Ver. 1.10 Ver. 1.00
NX-OD3153
NX-OD3256
NX-OD3257
NX-OD3268 Ver. 1.13
NX-OD4121 Ver. 1.10
NX-OD4256
NX-OD5121
NX-OD5121-1 Ver. 1.13
NX-OD5121-5 Ver. 1.10
NX-OD5256
NX-OD5256-1 Ver. 1.13
NX-OD5256-5 Ver. 1.10
NX-OD6121-5
NX-OD6121-6 Ver. 1.13
NX-OD6256-5 Ver. 1.10
NX-OC2633
NX-OC2733
NX-OC4633 Ver. 1.17
NX-MD6121-5 Ver. 1.10
NX-MD6121-6 Ver. 1.13
NX-MD6256-5 Ver. 1.10
Note: 1. Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
support is provided by the oldest available version after the specified version. Refer to the user’s manuals for the
specific Units for the relation between models and versions.
2. Note: You cannot connect the relevant NX Unit to the target Communications Coupler Unit if “—” is shown in the
corresponding unit versions/versions column.
*1 Refer to the user’s manual for the EtherNet/IP Coupler Units for information on the unit versions of EtherNet/IP Units
that are compatible with EtherNet/IP Coupler Units.
*2 Refer to the user’s manual for the EtherNet/IP Coupler Units for information on the unit versions of CPU Units and
EtherNet/IP Units that are compatible with EtherNet/IP Coupler Units.
*3 For connection to an EtherNet/IP Coupler Unit with unit version 1.0, connection is supported only for a connection to the
peripheral USB port on the EtherNet/IP Coupler Unit. You cannot connect by any other path. If you need to connect by
another path, use an EtherNet/IP Coupler Unit with unit version 1.2 or later.

Connected to Communication Control Units

NX Unit Corresponding unit versions/versions
Model Unit version Communication Control Unit Sysmac Studio
NX-ID3317 Ver. 1.0 Ver. 1.00 Ver. 1.24
NX-ID3343
NX-ID3344 — —
NX-ID3417 Ver. 1.00 Ver. 1.24
NX-ID3443
NX-ID3444 Ver. 1.0 — —
NX-ID4342 Ver. 1.00 Ver. 1.24
NX-ID4442
NX-ID5142-1
NX-ID5142-5
NX-ID5342
NX-ID5442
NX-ID6142-5
NX-ID6142-6
NX-IA3117
NX-OD2154 — —
NX-OD2258
NX-OD3121 Ver. 1.00 Ver. 1.24
NX-OD3153
NX-OD3256
NX-OD3257
NX-OD3268
NX-OD4121
NX-OD4256
NX-OD5121
NX-OD5121-1
NX-OD5121-5
NX-OD5256
NX-OD5256-1
NX-OD5256-5
NX-OD6121-5
NX-OD6121-6
NX-OD6256-5
NX-OC2633
NX-OC2733
NX-OC4633
NX-MD6121-5
NX-MD6121-6
NX-MD6256-5
Note: 1. Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
support is provided by the oldest available version after the specified version. Refer to the user’s manuals for the
specific Units for the relation between models and versions.
2. Note: You cannot connect the relevant NX Unit to the Communication Control Unit if “—” is shown in the
corresponding unit versions/ versions column.

last update: January 22, 2018

(Unit: mm)

Screwless Clamping Terminal Block Type

12 mm Width

NX-ID / IA / OD / OC / MD Dimensions 2

* The dimension is 1.35 mm for Units with lot numbers through December 2014.

24 mm Width

NX-ID / IA / OD / OC / MD Dimensions 3

M3 Screw Terminal Block Type

30 mm Width

NX-ID / IA / OD / OC / MD Dimensions 5

MIL Connector Type (1 Connector with 20 terminals)

30 mm Width

NX-ID / IA / OD / OC / MD Dimensions 7

MIL Connector Type (1 Connector with 40 terminals)

30 mm Width

NX-ID / IA / OD / OC / MD Dimensions 9

MIL Connector Type (2 Connectors with 20 terminals)

30 mm Width

NX-ID / IA / OD / OC / MD Dimensions 11

Fujitsu Connector Type (1 Connector with 40 terminals)

30 mm Width

NX-ID / IA / OD / OC / MD Dimensions 13

Fujitsu Connector Type (2 Connectors with 24 terminals)

30 mm Width

NX-ID / IA / OD / OC / MD Dimensions 15
Catalog Name
Catalog Number
[size]
Last Update
 NX-ID/IA/OD/OC/MD Data Sheet –
[11436KB]		 Aug 01, 2018
 NX-series I/O System Catalog R183-E1-09
[6683KB]		 Nov 01, 2018
 XW2R Series Catalog G077-E1-03
[21666KB]		 Apr 02, 2018
 XW2Z-R Data Sheet G126-E1-02
[2435KB]		 Apr 03, 2017
 G70[]/G7TC Table of I/O Relay Terminal and connectable device combinations J217-E1-02
[1206KB]		 Jun 01, 2018
 XW2 Series Table of Connector-Terminal Block Conversion Units and connectable device combinations G129-E1-02
[950KB]		 Jun 01, 2018

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