INVT Goodrive350 Series Operation Manual page 320

Goodrive350 IP55 High-ingress Protection Series VFD
RTU slave response (from the VFD to the master)
MSB of data writing address
LSB of data writing address
MSB of data content
LSB of data content
Note: The sections 9.4.1 and 9.4.2 mainly describe the command formats. For the detailed
application, see the examples in section 9.4.7.
9.4.3 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, if the master writes 5000 (1388H) and 50 (0032H) to 0004H and 0005H of the
VFD whose address is 02H, the frame structure is as follows.
RTU master command (from the master to the VFD)
MSB of data writing address
LSB of data writing address
Data count MSB
Data count LSB
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
END
START
ADDR
CMD
CRC LSB
CRC MSB
END
START
ADDR
CMD
Bytes
CRC LSB
CRC MSB
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
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Communication protocol
02H
06H
00H
04H
13H
88H
C5H
6EH
02H
10H
00H
04H
00H
02H
04H
13H
88H
00H
32H
C5H
6EH