ENC EDS300 Series, Manual

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Modbus Communication Protocol
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CRC check value low byte Be calculated
CRC check value high byte Be calculated
The contents of slave answer package ：
ADR 01H
CMD 03H
number of parameter value bytes 04H
Address 0000H content high byte 00H
Address 0000H content low byte 01H
Address 0001H content high byte 13H
Address 0001H content low byte 88H
CRC check value low byte Be calculated
CRC check value high byte Be calculated
7.4.3 Host write slave parameter
Command code 06H. Host can write an parameter by initiating a
communication transaction .
E.g.,The decimal system 5000 (1388H) written to the inverter 0001H address
whose slave address is 02 ， host command package including:
ADR 02H
CMD 06H
Parameter address high byte 00H
Parameter address low byte 01H
Parameter value high byte 13H
Parameter value low byte 88H
CRC check value low byte Be calculated
CRC check value high byte Be calculated
The contents of slave reply
：
ADR 02H
CMD 06H
Parameter address high byte 00H
Parameter address low byte 01H
Address 0903H content high byte 13H
Address 0903H content low byte 88H
CRC check value low byte Be calculated
CRC check value high byte Be calculated
7.5 Data communication address allocation
7.5.1 Function code F0-Fd group communication address
The Addressing method of MODBUS communication address for inverter
function code parameter follows PPnn mode: PP means address high byte,
corresponding to function parameter’s group number; nn means address low byte,
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