Goodrive35 Series Closed-loop Vector Control VFD
For example, to query about the circuit detection information about the VFD whose address is 01H,
the query and return strings are the same, and the format is described in the following tables.
RTU master command
MSB of the sub-function code
LSB of the sub-function code
MSB of data
LSB of data
LSB of CRC CHK
MSB of CRC CHK
RTU slave response
START
ADDR
MSB of the sub-function code
LSB of the sub-function code
MSB of data
LSB of data
LSB of CRC CHK
MSB of CRC CHK
10.4.4 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)
START
ADDR
MSB of data writing address
LSB of data writing address
MSB of data quantity
START
ADDR
CMD
END
CMD
END
CMD
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)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
225
Communication protocol
01H
08H
00H
00H
12H
ABH
ADH
14H
01H
08H
00H
00H
12H
ABH
ADH
14H
02H
10H
00H
04H
00H
Need help?
Do you have a question about the Goodrive35 Series and is the answer not in the manual?
Questions and answers