Command Code: 06H, Writing A Word - INVT Goodrive35 Series Operation Manual

Goodrive35 Series Closed-loop Vector Control VFD
A piece of data is two bytes, with the MSB on the left and LSB on the right. From the response, we
can see that the data in 0004H is 1388H, and that in 0005H is 0000H.
CRC check occupies two bytes, with the LSB on the left, and MSB on the right.

10.4.2 Command code: 06H, writing a word

This command is used by the master to write data to the VFD. One command can be used to write
only one piece of data. It is used to modify the parameters and operation mode of the VFD.
For example, to write 5000 (1388H) to 0004H of the VFD whose address is 02H, the structure of the
frame is described in the following table.
RTU master command (transmitted by the master to the VFD)
MSB of data writing address
LSB of data writing address
MSB of to-be-written data
LSB of to-be-written data
LSB of CRC
MSB of CRC
RTU slave response (transmitted by the VFD to the master)
MSB of data writing address
LSB of data writing address
MSB of to-be-written data
LSB of to-be-written data
LSB of CRC
MSB of CRC
Note: Section 10.2 and 10.3 mainly describe the command format, and the detailed application will be
mentioned in 10.4.8 with examples.
10.4.3 Command code: 08H, diagnosis
Sub-function code description
Sub-function Code
START
ADDR
CMD
END
START
ADDR
CMD
END
0000
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)
Return data based on query requests
224
Communication protocol
02H
06H
00H
04H
13H
88H
C5H
6EH
02H
06H
00H
04H
13H
88H
C5H
6EH
Description