Omron NX-ECC201

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Revision History

NX-series EtherCAT Coupler Unit User’s Manual (W519)

Revision History

A manual revision code appears as a suffix to the catalog number on the front and back covers of the

manual.

Revision code Date Revised content

01 April 2013 Original production

Cat. No.

W519-E1-01

Revision code

Main Page

Introduction3
- Table of Contents4
Relevant Manuals10
Manual Structure12
Read and Understand this Manual14
Safety Precautions17
Precautions for Safe Use21
Precautions for Correct Use25
Regulations and Standards26
Unit Versions28
Related Manuals31
Terminology34
Revision History36
Sections in this Manual37
- Ethercat Networks39
Section 1 Ethercat Networks40
- Introduction to Ethercat40
  - How Ethercat Works40
  - Types of Ethercat Communications42
- Ethercat Network Configuration Elements43
  - System Configuration Example of an Ethercat Network43
  - Introduction to Configuration Devices44
    - Features and System Configuration47
Section 2 Features and System Configuration48
- Features of Ethercat Slave Terminals48
- System Configurations of Ethercat Slave Terminals50
- Support Software53
Section 3 Specifications and Application Procedures58
- Specifications58
- Procedures62
  - Ethercat Slave Terminal Application Procedures62
  - Details64
    - Part Names and Functions69
Section 4 Part Names and Functions70
- Parts and Names70
- Indicators73
- Hardware Switch Settings77
- Communications Connector and Peripheral USB Port79
- Terminal Block80
- DIN Track Contact Plate81
  - Designing the Power Supply System83
Section 5 Designing the Power Supply System84
- Power Supply System and Design Concepts84
- Designing the NX Unit Power Supply System88
  - Procedure for Designing the NX Unit Power Supply System88
  - Calculation Example for the NX Unit Power Supply89
- Designing the I/O Power Supply System91
- Selecting External Power Supplies and Protective Devices97
Section 6 Installation102
- Installing Units102
- Control Panel Installation123
Ethercat Network Wiring134
- Installation Precautions134
- Preparations for Installation135
- Pin Arrangement of Communications Connectors on the Ethercat Coupler Unit136
- Connecting Communications Cables and Connectors137
- Connecting Communications Cables138
Connecting the Power Supply and Ground Wires140
- Wiring the Ethercat Coupler Unit140
- Wiring the Power Supply to the Ethercat Slave Terminal141
- Grounding the Ethercat Slave Terminal141
- Precautions for Wiring the Ethercat Slave Terminal Together with Computers and Other Peripheral Devices145
  - With Computers and Other Peripheral Devices7-13145
- Wiring to the Screwless Clamping Terminal Block146
Connecting USB Cable158
Wiring External Signal Lines160
- Ethercat Communications161
Structure of CAN Application Protocol over Ethercat (Coe)162
Ethercat Slave Information Files (ESI Files)163
Transitions of Communications States164
Process Data Objects (Pdos)165
- Introduction165
- PDO Mappings166
- Assigning Pdos168
Service Data Objects (Sdos)169
- Introduction169
- Abort Codes169
Communications between an Ethercat Master and Slaves170
- Communications Modes for Communications between an Ethercat Master and Slaves170
- Communications Modes for Ethercat Slave Terminals170
- Communications Cycle170
  - Setting up Slave Terminals171
Settings and Setting Procedures172
- Items to Set172
- Slave Terminal Parameters172
- Variable Assignment Settings173
- Setting Procedures173
Setting Slave Terminal Parameters174
- Items to Set174
- Settings as an Ethercat Slave176
- Setting the Unit Configuration Information178
- I/O Allocation Information181
- I/O Allocation Information183
- Unit Operation Settings193
- Unit Application Data195
- Sysmac Studio Functions Used as Required195
- Assigning Variables199
- Transferring and Comparing Settings204
  - Transferring Settings204
  - Comparing Settings206
- Backing up Settings207
- Precautions in Changing the Unit Configuration211
Section 10 I/O Refreshing216
- Introduction to I/O Refreshing for Ethercat Slave Terminals216
- I/O Refreshing for Ethercat Slaves218
  - I/O Refreshing Modes218
  - I/O Refreshing Mode Operation218
- I/O Refreshing for Ethercat Slave Terminals220
Section 11 Ethercat Coupler Unit Functions227
- Functions227
- NX Unit Mounting Settings229
- Sysmac Device Functionality Unique to Ethercat Slaves232
- Security234
- Event Logs236
- Clearing All Memory244
- Restarting246
Changing Event Levels248
- Introduction248
- Details on Changing Event Levels248
- Procedure to Change an Event Level249
Resetting Errors251
- Introduction251
- Details on Resetting Errors251
- Procedure to Reset Errors252
Performance of Process Data Communications256
- I/O Response Times for Synchronous I/O Refreshing256
- I/O Response Times for Free-Run Refreshing268
Message Response Time276
- Special Instructions276
- Message Response Time277
  - Troubleshooting279
How to Check for Errors280
Checking for Errors and Troubleshooting with the Indicators281
- Checking for Errors and Troubleshooting with281
- Checking for Errors and Troubleshooting with289
Checking for Errors and Troubleshooting on the Sysmac Studio290
- Checking for Errors from the Sysmac Studio290
- Event Codes for Errors and Troubleshooting Procedures292
Resetting Errors318
Error Notification Methods319
Error Notifications Based on the Sysmac Error Status320
Emergency Messages321
- Enabling/Disabling Emergency Message Notification321
- Error Logs321
- Emergency Error Codes322
Error Notifications Based on the al Status325
- Procedure for Checking al Status Codes325
- AL Status Codes325
- AL Status Codes326
Troubleshooting Other Errors328
13-10Troubleshooting Flow When Errors Occur329
- When the Sysmac Studio Is Connected to an NJ-Series CPU Unit329
- When the Sysmac Studio Is Connected to the Ethercat Coupler Unit330
13-11Troubleshooting When the Sysmac Studio Cannot Go Online331
- Cannot Go Online331
- Troubleshooting by Cause332
  - Maintenance and Inspection333
Cleaning and Maintenance334
- Cleaning334
- Periodic Inspections334
- Maintenance Procedures336
Appendices341
- Dimensions343
- Supplementary Information on Sysmac Studio Functions345
- Special Instructions347
- Connecting to Masters from Other Manufacturers349
- A-5 Coe Objects353
- NX Objects392
- Version Information399

Table of Contents

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