Delta D25886 User Manual download pdf (Page 286)

Appendix A

DVP-MC operating manual A-23

Data structure of response message:

Data order Name Byte

Byte0 Modbus ID Single byte

Byte1 Function code Single byte

Byte2 High byte

Byte3

The start address of DVP10MC11T bit device where to write the

value

Low byte

Byte4 High byte

Byte5

The number of DVP10MC11T bit devices where to write the value

Low byte

Byte6 Low byte of CRC check sum Low byte

Byte7 High byte of CRC check sum High byte

Data structure of abnormality response message:

Data order Name Byte

Byte0 Modbus ID Single byte

Byte1 0x80+ function code Single byte

Byte2 Abnormality response code High byte

Byte3 Low byte of CRC check sum Low byte

Byte4 High byte of CRC check sum High byte

Note: How many bytes of data in request message are determined by the number of bit device where to

write the value in the response message.

¾ Set DVP10MC11T M0~M7=1000 0001, M8~M15=0001 1000, M16~M19=0110 via function code 0F;

M0 address: 0x0800

Request message: “01 0F 08 00 00 14 03 81 18 06 8B F9”

Response message: “01 0F 08 00 00 14 57 A4”

 The Indication of Modbus Communication Port LED

COM1 LED is RS-232 communication port indicator used by PLC module to show RS-232

communication state.

LED state Indication

Yellow light flash There are response data at RS-232（COM1）port.

Off There are no response data at RS-232（COM1）port.

COM2 LED is RS-485 communication port indicator commonly used by motion control

module and PLC module to show RS-485 communication state.

RUN state Indication

Yellow light flash

There are response data at RS-485（COM2）port

Off There are no response data at RS-485（COM2）port

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Delta D25886 User Manual Page 286