Appendix B Abnormality response message data structure: Note: How many bytes of data in response message depend on the read device address number in DVP10MC11T in request message. So n value in Byte n in response message can be calculated through reading device address number in DVP10MC11T. Example: To read the content of 0x1000 and 0x1001 address in DVP10MC11T 0x1000 and 0x1001 are the Modbus address of D0 and D1 in DVP10MC11T respectively. Suppose D0 value is 0x0100 and D1 is 0x0200. Request message: “ 00 00 00 00 00 06 01 03 10 00 00 02” Response message:
“00 00 00 00 00 07 01 03 04 01 00 02 00” DVP-MC operating manual B-5 Data order Name Byte Byte9 Device address content in DVP10MC11T High byte Byte10 Low byte … Device address content in DVP10MC11T High byte Byte n Low byte Data order Name Byte Byte0 Transaction identifier High byte Byte1 Low byte Byte2 Protocol identifier High byte Byte3 Low byte Byte4 Modbus data length High byte Byte5 Low byte Byte6 Modbus ID Single byte Byte7 0x80+ function code Single byte Byte8 Abnormality response code Single byte