Issue:
What are the Modbus Function Codes supported by the new UNITY Momentum controllers?
Product Line:
Unity, Momentum, Quantum, M580, M340
Resolution:
Modbus function codes supported by the Unity Momentum Controller:
- 01 = Read multiple bits (%Q)
- 02 = Read multiple discrete bits (%I)
- 03 = Read multiple words (%MW)
- 04 = Read multiple input words (%IW)
- 05 = Write single bit (%Q)
- 06 = Write single words (%MW)
- 07 = Read Exception Status (For serial line only)
- 08 = Diagnostic with the following sub-functions attached for serial line only:
- Sub-function code 00 “echo mode" (Return Query Data)
- Sub-function code 01 (Restart Communication Option)
- Sub-function code 02 (Return Diagnostic Register)
- Sub-function code 03 (Change ASCII Input Delimiter)
- Sub-function code 04 (Force Listen Only Mode)
- Sub-function code 10 (Clear Counters and Diagnostic Register)
- Sub-function code 11 "counter 1" (Return Bus Message Count)
- Sub-function code 12 "counter 2" (Return Bus Communication Error Count)
- Sub-function code 13 "counter 3" (Return Bus Exception Error Count)
- Sub-function code 16 "counter 6" (Return Slave NAK Count)
- Sub-function code 17 "counter 7" (Return Slave Busy Count)
- Sub-function code 18 "counter 8" (Return Bus Character Overrun Count)
- 11 = Get Com Event Counter (For serial line only)
- 12 = Get Com Event Log (For serial line only
- 15 = Write multiple bits (%Q)
- 16 = Write multiple words (%MW)
- 22 = Mask write register (As a Server only)
- 23 = Read/Write multiple registers (%MW)
If this FAQ did not solve your issue, you can chat with us at chat with us or e-mail us at customer.services@se.com to create a case with our Technical Support Team.
If you are not located in North America, please contact your local Customer Care Center for assistance:
發佈於: 施耐德電機Taiwan
