xii 
  DMC_MoveLinearRelative ................................................................... 11-350 
  DMC_MoveCircularAbsolute ................................................................ 11-363 
  DMC_MoveCircularRelative ................................................................. 11-374 
  DMC_GroupSetOverride ..................................................................... 11-385 
  DMC_GroupReadActualPosition ........................................................... 11-390 
11.8  Coordination Instructions .................................................................... 11-392 
  DMC_ControlAxisByPos ...................................................................... 11-392 
  DMC_NC .......................................................................................... 11-397 
 
Chapter12  Troubleshooting 
12.1  Explanation of LED Indicators .................................................................. 12-2 
12.2  Table of Error IDs in Motion Instructions ................................................. 12-8 
12.3  System Trouble Diagnosis through System Error Codes ......................... 12-12 
 
Appendix A Modbus Communication 
A.1  Message Format in ASCII Mode .................................................................. A-2 
A.2  Message Format in RTU Mode .................................................................... A-5 
A.3  Modbus Function Codes Supported ............................................................ A-7 
A.4  Modbus Exception Response Code Supported ............................................ A-7 
A.5  Introduction to Modbus Function Codes ..................................................... A-8 
A.6  Table of Registers and Corresponding Modbus addresses ........................ A-15 
 
Appendix B Modbus TCP Communication 
B.1  Modbus TCP Message Structure ................................................................. B-2 
B.2  Modbus Function Codes Supported in Modbus TCP ..................................... B-2 
B.3  Exception Response Code in Modbus TCP ................................................... B-3 
B.4  Modbus Function Codes in Modbus TCP ...................................................... B-3 
B.5  Registers and Corresponding Modbus Addresses ..................................... B-12 
 
Appendix C CANopen Protocol 
C.1  Node States................................................................................................ C-4