Specifications

VFD-G Series
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5-50
RTU mode:
Command message: Response message: Error response message
ADR 01H ADR 01H ADR 01H
CMD 06H CMD 1 06H CMD 1 86H
data 01H data 01H Error code 02
Starting
address
00H Starting
address
00H CRC CHK
LOW
C3H
data 17H
data
17H CRC CHK
HIGH
A1H
00H 70H
CRC CHK
LOW
87H CRC CHK
LOW
87H
CRC CHK
HIGH
C6H CRC CHK
HIGH
C6H
● Command code: 08H, loop detection
This command is used to test the communication condition between master control
equipment (usually is PC or PLC) and AC drive. AC drive will deliver the data that
received from AC drive to master control equipment.
For example:
ASCII mode:
Command message: Response message: Error response message
STX ‘:’ STX ‘:’ STX ‘:’
ADR 1 ‘0’ ADR 1 ‘0’ ADR 1 ‘0’
ADR 0 ‘1’ ADR 0 ‘1’ ADR 0 ‘1’
CMD 1 ‘0’ CMD 1 ‘0’ CMD 1 ‘8’
CMD 0 ‘8’ CMD 0 ‘8’ CMD 0 ‘8’
data ‘0’ data ‘0’ Error ‘0’
Starting ‘0’ Starting ‘0’ code ‘2’
address ‘0’ ‘0’ LRC CHK 0 ‘6’
‘0’ ‘0’ LRC CHK 1 ‘D’
data ‘1’ data ‘1’ END 1 CR
‘7’ ‘7’ END 0 LF
‘7’ ‘7’
‘0’ ‘0’
LRC CHK 1 ‘7’ LRC CHK 1 ‘7’
LRC CHK 0 ‘0’ LRC CHK 0 ‘0’
END 1 CR END 1 CR
END 0 LF END 0 LF