Delta VFD-E Series, User Manual

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Chapter 4 Parameters 
4-142
(3) 08H: loop detection
This command is used to detect if the communication between master device (PC or PLC)
and AC motor drive is normal. The AC motor drive will send the received message to the
master device.
ASCII mode:
Command message: Response message:
STX ‘:’ STX ‘:’
Address
‘0’
Address
‘0’
‘1’ ‘1’
Function
‘0’
Function
‘0’
‘8’ ‘8’
Data address
‘0’
Data address
‘0’
‘0’ ‘0’
‘0’ ‘0’
‘0’ ‘0’
Data content
‘1’
Data content
‘1’
‘7’ ‘7’
‘7’ ‘7’
‘0’ ‘0’
LRC Check
‘7’
LRC Check
‘7’
‘0’ ‘0’
END
CR
END
CR
LF LF
RTU mode:
Command message:
Response message:
Address 01H Address 01H
Function 08H Function 08H
Data address
00H
Data address
00H
00H 00H
Data content
17H
Data content
17H
70H 70H
CRC CHK Low EEH CRC CHK Low EEH
CRC CHK High 1FH CRC CHK High 1FH