Appendix A Data structure of abnormality response message: Example: Write 0x0100 to 0x1000 address in DVP10MC11T via function code 06. 。 Request message: “ 01 06 10 00 01 00 8C 9A”. Response message: “ 01 06 10 00 01 00 8C 9A”. Function code: 0x10 to write multi word-device register value Data structure of request message:
A-18 DVP-MC operating manual Data order Name Byte Byte4 The written value High byte Byte5 Low byte Byte6 Low byte of CRC check sum Low byte Byte7 High byte of CRC check sum High byte Data order Name Byte Byte0 Modbus ID Single byte Byte1 0x80+ function code Single byte Byte2 Abnormality response code Single byte Byte3 Low byte of CRC check sum Low byte Byte4 High byte of CRC check sum High byte Data order Name Byte Byte0 Modbus ID Single byte Byte1 Function code Single byte Byte2 The start address of DVP10MC11T word device where to write the value.
High byte Byte3 Low byte Byte4 The address number of DVP10MC11T word device where to write the value.（Counted by words） High byte Byte5 Low byte Byte6 The address number of DVP10MC11T word device where to write the value. （Counted by bytes） Single byte Byte7 The address value written into DVP10MC11T word device. High byte Byte8 Low byte … The address value written into DVP10MC11T word device. High byte … Low byte Byte n The address value written into DVP10MC11T word device. High byte Byte n+1 Low byte