INVT IPE300 Series, Opeartion Manual

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IPE300 series engineering VFD Communication protocol
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START T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes)
ADDR 02H
CMD 10H
MSB of data writing address 00H
LSB of data writing address 04H
Data count MSB 00H
Data count LSB 02H
Bytes 04H
MSB of data to be written to 0004H 13H
LSB of data to be written to 0004H 88H
MSB of data to be written to 0005H 00H
LSB of data to be written to 0005H 32H
CRC LSB C5H
CRC MSB 6EH
END T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes)
RTU slave response (from the VFD to the master)
START T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes)
ADDR 02H
CMD 10H
MSB of data writing address 00H
LSB of data writing address 04H
Data count MSB 00H
Data count LSB 02H
CRC LSB C5H
CRC MSB 6EH
END T1-T2-T3-T4 (time gap with a min. length of 3.5 bytes)
9.4.5 Data address definition
This section describes the address definition of communication data. The addresses are used for
controlling the running, obtaining the state information, and setting related function parameters of the
VFD.
9.4.5.1 Function code address format rules
The address of a function code consists of two bytes, with the MSB on the left and LSB on the right.
The MSB ranges from 00 to ffH, and the LSB also ranges from 00 to ffH. The MSB is the hexadecimal
form of the group number before the dot mark, and LSB is that of the number behind the dot mark.
Take P05.06 as an example: The group number is 05, that is, the MSB of the parameter address is
the hexadecimal form of 05; and the number behind the dot mark is 06, that is, the LSB is the
hexadecimal form of 05. Therefore, the function code address is 0506H in the hexadecimal form. For
P10.01 , the parameter address is 0A01H.