Code Snippet - Using Modbus RTU Master Function Block (TF6255) Disclaimer This guide is a personal project and not a peer-reviewed publication or sponsored document. It is provided “as is,” without ...

MODBUS Request PDU, mb_req_pdu mb_req_pdu = {function_code, request_data}, where function_code = [1 byte] MODBUS function code, request_data = [n bytes] This field is function code dependent and ...