Appendix B. Modbus Protocolļ¼VFD-ED
4. 10H: write multiple registers (can write at most 20 sets of data simultaneously).
Example: Set the multi-step speed of an AC motor drive (address is 01H),
Pr.04-00 = 50.00 (1388H), Pr.04-01 = 40.00 (0FA0H.)
ASCII mode:
Command Message Response Message
Target register
Target register
Number of register
(count by word)
Number of register
(count by word)
Number of register
(count by byte)
LRC Check
The first data content
END
The second data content
LRC Check
END
RTU mode:
Command Message Response Message
Target register
Target register
Number of register
(Count by word)
Number of register
(Count by word)
The first data content
The second data content
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