Extension module X90IF730.04-00 for X90CP174.48-00 485 with Modbus-RTU communication

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1

B&R’s X90CP174.48-00 with expansion module X90IF730.04-00 communicates 485 with Modbus-RTU, fault code 65535 alternates with 20220

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2

Error 20220 is timeout, which means that there is most likely some issue with the connection to the device. Either in configuration (wrong nodeid) or cabling.
Automation Help: Error Number 20220

Error 65535 means that the function block is busy.
Automation Help: DRV_mbus error numbers

3

thank you!thank you!

4

The variable used in datamod is longer than 31 characters.
Have you tried a shorter variable name?