Maxsine EP3 AC Series, User Manual

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6.3 MODBUS communication protocol
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example.
For example, read the section 0 No.05 parameter of station No. 01H servo drive. If the last
content of CRC register is 3794H counting from ADR to the last byte of data, the command
information is as follows. It needs to note that byte 94H should be sent before byte 37H.
ADR 01H
CMD 03H
Initial data
position
00H(hign byte)
05H(low byte)
Data
number
00H(hign byte)
02H(low byte)
CRC Low D4H(hign byte)
CRC High OAH(low byte)
End 1, end 0 communication end:
ASCII mode: It indicates end communication with ODH which is character‘\r’and 0AH
which is character‘\n’.
RTU mode: The minimum time interval with below frame is 3.5 character time.