INVT Goodrive390L Series User Manual page 75

Goodrive390L Series Lift-Dedicated VFD
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 frame structure is as follows.
RTU master command (from the master to the VFD)
START
ADDR
MSB of data writing address
LSB of data writing address
Data count MSB
Data count LSB
Number of bytes
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
CRC LSB
CRC MSB
RTU slave response (from the VFD to the master)
START
ADDR
CMD
MSB of data writing address
LSB of data writing address
Data count MSB
Data count LSB
CRC LSB
CRC MSB
END
7.1.2.5 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.
202403 (V1.0）
CMD
END
T1-T2-T3-T4 (transmission time of 3.5 bytes)
02H
10H
00H
04H
00H
02H
C5H
6EH
T1-T2-T3-T4 (transmission time of 3.5 bytes)
T1-T2-T3-T4 (transmission time of 3.5 bytes)
02H
10H
00H
04H
00H
02H
04H
13H
88H
00H
32H
C5H
6EH
T1-T2-T3-T4 (transmission time of 3.5 bytes)
Communication protocol
67