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NX-ECC

NX-series EtherCAT Coupler Unit

NX-ECC

Flexible System Can Be Achieved with Highspeed, High-precision Remote I/O for EtherCAT

General Specification

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 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 (UL 508 or UL61010-2-201), ANSI/ISA 12.12.01,
EU: EN 61131-2, C-Tick or RCM, KC Registration, NK, and LR

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

Specifications

EtherCAT Coupler Unit NX-ECC201/NX-ECC202/NX-ECC203

Item Specification
Model NX-ECC201 NX-ECC202 NX-ECC203
No. of connectable NX Units 63 Units max. *1
Send/receive PDO data sizes Input: 1,024 bytes max. (including input data, status, and unused areas)
Output: 1,024 bytes max. (including output data and unused areas)
Mailbox data size Input: 256 bytes
Output: 256 bytes
Mailbox Emergency messages and SDO requests
Refreshing methods *2 • Free-Run refreshing
• Synchronous I/O refreshing
• Time stamp refreshing
• Free-Run refreshing
• Synchronous I/O refreshing
• Time stamp refreshing
• Task period prioritized refreshing
Node address setting range When the settable node address range for the built-in EtherCAT port is 1 to 512 *3
• Set on switches: 1 to 199
• Set with the Sysmac Studio: 1 to 512
When the settable node address range for the built-in EtherCAT port is 1 to 192 *3
• Set on switches: 1 to 192
• Set with the Sysmac Studio: 1 to 192
I/O jitter performance Inputs: 1 μs max.
Outputs: 1 μs max.
Communications cycle in DC
Mode
250 to 4,000 μs*4 *5 125 to 10,000 μs*4 *5 *6
Unit
power
supply
Power supply voltage 24 VDC (20.4 to 28.8 VDC)
NX Unit power supply
capacity
10 W max.
Refer to Installation orientation and restrictions for details.
NX Unit power supply
efficiency
70%
Isolation method No isolation between NX Unit power supply and Unit power supply terminals
Current capacity of
power supply terminals
4 A max.
I/O
power
supply
Power supply voltage 5 to 24 VDC (4.5 to 28.8 VDC) *7
Maximum I/O power
supply current
4 A 10 A
Current capacity of
power supply terminals
4 A max. 10 A max.
NX Unit power consumption 1.45 W max. 1.25 W max.
Current consumption from
I/O power supply
10 mA max. (for 24 VDC)
Dielectric strength 510 VAC for 1 min, leakage current: 5 mA max. (between isolated circuits)
Insulation resistance 100 VDC, 20 MΩ min. (between isolated circuits)
External connection terminals Communications Connector
For EtherCAT communications.
• RJ45 × 2 (shielded)
• IN: EtherCAT input data, OUT: EtherCAT output data
Screwless Clamping Terminal Block (8 terminals)
For Unit power supply, I/O power supply, and grounding. Removable.
Peripheral USB Port
For Sysmac Studio connection.
• Physical layer: USB 2.0-compliant, B-type connector
• Transmission distance: 5 m max.
Dimensions 46 × 100 × 71 mm (W×H×D)
Weight 170 g max.
Installation orientation and
restrictions
Installation orientation: 6 possible orientations
Restrictions:
Used in the upright installation orientation.
3184_sp_2_1
Used in another orientation other than the upright installation orientation.
3184_sp_2_2
Circuit layout 3184_sp_2_3
Terminal arrangement 3184_sp_2_4
Accessory End Cover (NX-END01): 1

*1. Refer to the NX-series Safety Control Units User’s Manual (Cat. No. Z930) for the number of Safety Control Units that
      can be connected.
*2. This function was added or improved for a version upgrade. Refer to the NX-series EtherCAT Coupler Unit User’s
      Manual (Cat. No. W519) for information on version upgrades.
*3. The range of node addresses that can be set depends on the model of the built-in EtherCAT port. For the node address
      ranges that can be set for a built-in EtherCAT port, refer to the user's manual for the built-in EtherCAT port on the
      connected CPU Unit or Industrial PC.
*4. This depends on the specifications of the EtherCAT master. For example, the values are as follows when the EtherCAT
      Coupler Unit is connected to the built-in EtherCAT port on an NJ5-series CPU Unit: 500 μs, 1,000 μs, 2,000 μs, and
      4,000 μs. For the specifications of the built-in EtherCAT port, refer to the user's manual for the built-in EtherCAT port
      on the connected CPU Unit or the Industrial PC.
*5. This depends on the Unit configuration.
*6. There are restrictions in the communications cycles that you can set for some of the NX Units. If you use any of those
      NX Units, set a communications cycle that will satisfy the specifications for the refresh cycles that can be executed by
      the NX Unit. Refer to the appendix of the NX-series Data Reference Manual (Cat. No. W525-E1-07 or later) to see if
      there are restrictions on any specific NX Units. For information on the communications cycles that you can set, refer to
      the user’s manuals for the NX Units.
*7. Use a voltage that is appropriate for the I/O circuits of the NX Units and the connected external devices.

EtherCAT Communications Specifications

Item Specification
Communications standard IEC 61158 Type 12
Physical layer 100BASE-TX (IEEE 802.3)
Modulation Baseband
Baud rate 100 Mbps
Topology Depends on the specifications of the EtherCAT master.
Transmission media Category 5 or higher twisted-pair cable (Recommended cable: double-shielded cable with
aluminum tape and braiding)
Transmission distance Distance between nodes: 100 m or less

Version Information

Model
number of
EtherCAT
Coupler
Unit
Unit
version
Corresponding versions *1
Using an
NX-series CPU Unit
Using an
NJ-series CPU Unit
Using an
NY-series Industrial PC
Unit version
of CPU Unit
Sysmac
Studio
version
Unit version
of CPU Unit
Sysmac Studio
version
Unit version
of
Industrial PC
Sysmac
Studio
version
NX-ECC201 Ver. 1.2 Ver. 1.10 or
later
Ver. 1.13
or higher
Ver. 1.07 or later Ver. 1.08 or higher Ver. 1.12 or
later
Ver. 1.17
or higher
Ver. 1.1 Ver. 1.06 or later Ver. 1.07 or higher
Ver. 1.0 Ver. 1.05 or later Ver. 1.06 or higher
NX-ECC202 Ver. 1.2
*2
Ver. 1.07 or later Ver. 1.08 or higher
NX-ECC203 Ver. 1.4 Ver. 1.16
or higher
Ver. 1.16 or higher
Ver. 1.3
*3
Ver. 1.13
or higher
Ver. 1.13 or higher

*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 For the NX-ECC202, there is no unit version of 1.1 or earlier.
*3 For the NX-ECC203, there is no unit version of 1.2 or earlier.