Goodrive350 IP55 High-ingress Protection Series VFD Communication protocol
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T1-T2-T3-T4 (transmission time of 3.5 bytes)
9.4.4 Command code: 10H, continuous writing
The command code 10H is used by the master to write data to the VFD. The quantity of data to
be written is determined by "Data quantity", and a maximum of 16 pieces of data can be
written.
For example, to write 5000 (1388H) and 50 (0032H) respectively to 0004H and 0005H of the
VFD whose slave address is 02H, the structure of the frame is described in the following table.
RTU master command (transmitted by the master to the VFD)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
MSB of data writing address
LSB of data writing address
MSB of data to be written to 0004H
LSB of data to be written to 0004H
MSB of data to be written to 0005H
LSB of data to be written to 0005H
T1-T2-T3-T4 (transmission time of 3.5 bytes)
RTU slave response (transmitted by the VFD to the master)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
MSB of data writing address
LSB of data writing address
T1-T2-T3-T4 (transmission time 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.
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