Delta D25886 User Manual download pdf (Page 299)

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Appendix B

DVP-MC operating manual B-13

Abnormality response message data structure:

Data order Name Byte

Byte0 High byte

Byte1

Transaction identifier

Low byte

Byte2 High byte

Byte3

Protocol identifier

Low byte

Byte4 High byte

Byte5

Modbus data length

Low byte

Byte6 Modbus ID Single byte

Byte7 0x80+ function code Single byte

Byte8 Abnormality response code Single byte

Note:

Suppose the number of the bit device where to be written in DVP10MC11T in request message is A (Byte

10, Byte 11), If A is divided by 8 with no remainder, the quotient is B; otherwise, the quotient is B +1. B or

B+1 is the Byte number (Byte12) of bit devices in request message.

The low bit（Byte 13）of the value to be written in the bit device in DVP10MC11T in request message is the

values of the start address (Byte8, Byte9) of bit devices in DVP10MC11T.

¾ Example: To set M0~M7=1000 0001,M8~M15=0001 1000, M16~M19=0110 in DVP10MC11T; the address

of M0 is 0x0800

Request message: “ 00 00 00 00 00 0A 01 0F 08 00 00 14 03 81 18 06”

Response message: “00 00 00 00 00 06 01 0F 08 00 00 14”

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