Description
• SSI clock frequency up to 2 MHz
• High-speed remote I/O control with communications cycle as fast as 125 μs*1
• Free-run refreshing, synchronous I/O refreshing, or task period prioritized refreshing*2 with the NX1P2 CPU Unit or EtherCAT Coupler Unit
• The MC Function Modules of the NJ/NX/NY5 Controllers allows the encoder to be used as a motion axis
• Choice of SSI Coding Methods (No conversion, binary code, or gray code)
• Time Stamping
• Multi-turn and single-turn encoders supported
• Data Refresh Status (Data refreshing can be checked on the host controller.)
• Maximum connecting SSI cable length: 400 m
• Connect to the CJ PLC using the EtherNet/IPTM bus coupler
*1. When using the NX-EC01[][] together with the NX701-[][][][] and NX-ECC203.
*2. Task Period Prioritized refreshing is available when the NX-ECC203 is used together.
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.
Applicable standards
Refer to the OMRON website (www.ia.omron.com) or ask your OMRON representative for the most recent applicable standards for each model.
Position Interface: SSI Input Units
| Product name |
Specification | Model | ||||
|---|---|---|---|---|---|---|
| Number of channels |
Input/ Output form |
Maximum data length |
Encoder power supply |
Type of external connections |
||
| SSI Input Units  |
1 | EIA standard RS-422-A |
32 bits | 24 VDC, 0.3 A/CH |
Screwless push- in terminal block (12 terminals) |
NX-ECS112 |
| 2 | EIA standard RS-422-A |
32 bits | 24 VDC, 0.3 A/CH |
Screwless push- in terminal block (12 terminals) |
NX-ECS212 | |
Optional Products
| Product name | Specification | Model |
|---|---|---|
| Unit/Terminal Block Coding Pins | For 10 Units (Terminal Block: 30 pins, Unit: 30 pins) | NX-AUX02 |
| Product name | Specification | Model | |||
|---|---|---|---|---|---|
| No. of terminals |
Terminal number indications |
Ground terminal mark |
Terminal current capacity |
||
| Terminal Block | 12 | C/D | None | 10 A | NX-TBB122 |
Accessories
Not included.
General Specification
| Item | Specification | |
|---|---|---|
| Enclosure | Mounted in a panel | |
| Grounding method | Ground to less than 100 Ω | |
| 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 | Pollution degree 2 or less: Conforms to JIS B3502 and IEC 61131-2. | |
| Noise immunity | Conforms to IEC61000-4-4, 2 kV (power supply line) | |
| Overvoltage category | Category II: Conforms to JIS B3502 and IEC 61131-2. | |
| EMC immunity level | Zone B | |
| Vibration resistance | 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 | Conforms to IEC 60068-2-27. 147 m/s2, 3 times each in X, Y, and Z directions | |
| Applicable standards * | cULus: Listed (UL508) or Listed (UL 61010-2-201), ANSI/ISA 12.12.01, EU: EN 61131-2, C-Tick or RCM, KC Registration, NK, LR |
|
* Ask your OMRON representative for the most recent applicable standards for each model.
SSI Input Unit Specifications
SSI Input Unit 1 channel NX-ECS112
| Unit name | SSI Input Unit | Model | NX-ECS112 |
|---|---|---|---|
| Number of channels | 1 channel | Type of external connections |
Screwless push-in terminal block (12 terminals) |
| I/O refreshing method | Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *1 | ||
| Indicators |  |
Input signals | External inputs: 2 Data input (D+, D-) External outputs: 2 Clock output (C+, C-) |
| I/O interface | Synchronized serial interface (SSI) | ||
| Clock output | EIA standard RS-422-A line driver levels | ||
| Data input | EIA standard RS-422-A line receiver levels | ||
| Maximum data length | 32 bits (The single-turn, multi-turn, and status data length can be set.) | ||
| Coding method | No conversion, binary code, or gray code | ||
| Baud Rate | 100 kHz, 200 kHz, 300 kHz, 400 kHz, 500 kHz, 1.0 MHz, 1.5 MHz, or 2.0 MHz | ||
| Dimensions | 12 × 100 × 71 mm (W × H × D) |
Isolation method | Digital isolator |
| Insulation resistance | 20 MΩ min. between isolated circuits (at 100 VDC) |
Dielectric strength |
510 VAC between isolated circuits for 1 minute with leakage current of 5 mA max. |
| I/O power supply source |
Supplied from the NX bus. 20.4 to 28.8 VDC (24 VDC +20%/-15%) |
Current capacity of I/O power supply terminals |
IOV: 0.3 A max. per terminal IOG: 0.3 A max. per terminal |
| NX Unit power consumption |
• Connected to a CPU Unit 1.20 W max. • Connected to a Commu- nications Coupler Unit 0.85 W max. |
Current consumption from I/O power supply |
20mA |
| Maximum transmission distance *2 |
Baud Rate | Maximum transmission distance | |
| 100 kHz | 400m | ||
| 200 kHz | 190m | ||
| 300 kHz | 120m | ||
| 400 kHz | 80m | ||
| 500 kHz | 60m | ||
| 1.0 MHz | 25m | ||
| 1.5 MHz | 10m | ||
| 2.0 MHz | 5m | ||
| Weight | 65g | ||
| Circuit layout |  |
||
| 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 |
 |
||
| Failure detection | None | Protection | None |
Unit.
Refer to information on the I/O refreshing methods in the W524 manual for the communications cycles for each
model.
*2. The maximum transmission distance for an SSI Input Unit depends on the baud rate due to the delay that can result
from the responsiveness of the connected encoder and cable impedance. The maximum transmission distance is
only a guideline. Review the specifications for the cables and encoders in the system and evaluate the operation of
the equipment before use.
SSI Input Unit 2 channel NX-ECS212
| Unit name | SSI Input Unit | Model | NX-ECS212 |
|---|---|---|---|
| Number of channels | 2 channels | Type of external connections |
Screwless push-in terminal block (12 terminals) |
| I/O refreshing method | Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *1 | ||
| Indicators |  |
Input signals | External inputs: 2 Data input (D+, D-) External outputs: 2 Clock output (C+, C-) |
| I/O interface | Synchronized serial interface (SSI) | ||
| Clock output | EIA standard RS-422-A line driver levels | ||
| Data input | EIA standard RS-422-A line receiver levels | ||
| Maximum data length | 32 bits (The single-turn, multi-turn, and status data length can be set.) | ||
| Coding method | No conversion, binary code, or gray code | ||
| Baud Rate | 100 kHz, 200 kHz, 300 kHz, 400 kHz, 500 kHz, 1.0 MHz, 1.5 MHz, or 2.0 MHz | ||
| Dimensions | 12 × 100 × 71 mm (W × H × D) |
Isolation method | Digital isolator |
| Insulation resistance | 20 MΩ min. between isolated circuits (at 100 VDC) |
Dielectric strength |
510 VAC between isolated circuits for 1 minute with leakage current of 5 mA max. |
| I/O power supply source |
Supplied from the NX bus. 20.4 to 28.8 VDC (24 VDC +20%/-15%) |
Current capacity of I/O power supply terminals |
IOV: 0.3 A max. per terminal IOG: 0.3 A max. per terminal |
| NX Unit power consumption |
• Connected to a CPU Unit 1.25 W max. • Connected to a Commu- nications Coupler Unit 0.9 W max. |
Current consumption from I/O power supply |
30mA |
| Maximum transmission distance *2 |
Baud Rate | Maximum transmission distance | |
| 100 kHz | 400m | ||
| 200 kHz | 190m | ||
| 300 kHz | 120m | ||
| 400 kHz | 80m | ||
| 500 kHz | 60m | ||
| 1.0 MHz | 25m | ||
| 1.5 MHz | 10m | ||
| 2.0 MHz | 5m | ||
| Weight | 65g | ||
| Circuit layout |  |
||
| 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 |
 |
||
| Failure detection | None | Protection | None |
Unit.
Refer to information on the I/O refreshing methods in the W524 manual for the communications cycles for each
model.
*2. The maximum transmission distance for an SSI Input Unit depends on the baud rate due to the delay that can result
from the responsiveness of the connected encoder and cable impedance. The maximum transmission distance is
only a guideline. Review the specifications for the cables and encoders in the system and evaluate the operation of
the equipment before use.
Version Information
Connected to a CPU Unit
Refer to the user’s manual for the CPU Unit 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-ECS112 | Ver. 1.0 | Ver. 1.13 | Ver. 1.17 |
| Ver. 1.1 | |||
| Ver. 1.2 | |||
| NX-ECS212 | Ver. 1.0 | Ver. 1.13 | Ver. 1.17 |
| Ver. 1.1 | |||
| Ver. 1.2 | |||
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-ECS112 | Ver. 1.0 | Ver. 1.1 *1 | Ver. 1.06 *1 | Ver. 1.07 |
| Ver. 1.1 | Ver. 1.08 | |||
| Ver. 1.2 | Ver. 1.3 *2*3 | Ver. 1.13 | ||
| NX-ECS212 | Ver. 1.0 | Ver. 1.1 *1 | Ver. 1.06 *1 | Ver. 1.07 |
| Ver. 1.1 | Ver. 1.08 | |||
| Ver. 1.2 | Ver. 1.3 *2*3 | Ver. 1.13 | ||
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.
*1. You can use the following versions if time stamp refreshing is not used.
*2. To use task period prioritized refreshing, you must use the NX-ECC203.
*3. If you do not use task period prioritized refreshing, you can use EtherCAT Coupler Units which support Position Interface Units with unit version 1.1 or earlier.
*4. If you do not use task period prioritized refreshing, you can use EtherCAT Coupler Units with unit version 1.0.
Connected to an EtherNet/IP Coupler Unit
| 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-ECS112 | Ver. 1.0 | Ver. 1.2 | Ver. 1.14 | Ver. 1.19 | Ver. 1.0 | Ver. 1.10 | Ver. 1.00 |
| Ver. 1.1 | |||||||
| Ver. 1.2 | Ver. 1.13 | ||||||
| NX-ECS212 | Ver. 1.0 | Ver. 1.2 | Ver. 1.14 | Ver. 1.19 | Ver. 1.0 | Ver. 1.10 | Ver. 1.00 |
| Ver. 1.1 | |||||||
| Ver. 1.2 | Ver. 1.13 | ||||||
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.
Note: 2. You cannot connect the relevant NX Unit or use the relevant NX Unit function if “—” is shown in the corresponding unit versions/versions column.
*1. Refer to the user’s manual of the EtherNet/IP Coupler Unit for the unit versions of EtherNet/IP Units corresponding to EtherNet/IP Coupler Units.
*2. Refer to the user’s manual of the EtherNet/IP Coupler Unit for the unit versions of CPU Units and EtherNet/IP Units corresponding to 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.
(Unit: mm)
Screwless Clamping Terminal Block Type
12 mm Width
![NX-ECS[][][] Dimensions 2](http://www.ia.omron.com/Images/3191_dm_113-172520.gif)
|
Catalog Name
|
Catalog Number
[size] |
Last Update
|
|---|---|---|
 NX-EC0/ECS/PG0 Data Sheet |
– [7485KB] |
Aug 01, 2018 |
| NX-series I/O System Catalog |
R183-E1-09 [6683KB] |
Nov 01, 2018 |
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