Delta PG-40 Specifications Page 94

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5
VFD-B Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-59
Command message: Response message:
ADR 01H ADR 01H
CMD 06H CMD 06H
00H 00H
Register address
00H
Register address
00H
12H 17H
Data content
ABH
Data content
70H
CRC CHK Low ADH CRC CHK Low ADH
CRC CHK High 14H CRC CHK High 14H
(3) 08H: loop detection, this command is used to test if the communication between
master equipment (PC or PLC) and AC drive is normal or not. AC drive will
send the data received from master equipment back to master equipment.
Example: AMD address is 01H.
ASCII mode:
Command message: Response message:
STX ‘:’ STX ‘:’
‘0’ ‘0’ ADR 1
ADR 0
‘1’
ADR 1
ADR 0
‘1’
‘0’ ‘0’ CMD 1
CMD 0
‘8’
CMD 1
CMD 0
‘8’
‘0’ ‘0’
‘0’ ‘0’
‘0’ ‘0’
Data address
‘0’
Data address
‘0’
‘1’ ‘1’
‘7’ ‘7’
‘7’ ‘7’
Data content
‘0’
Data content
‘0’
‘7’ ‘7’ LRC Check
‘0’
LRC Check
‘0’
CR END CR END
LF LF
RTU mode:
Command message: Response message:
ADR 01H ADR 01H
CMD 08H CMD 1 08H
00H 00H
Data address
00H
Data address
00H
17H’ 17H
Data content
70H
Data content
70H
CRC CHK Low 8EH CRC CHK Low 8EH
CRC CHK High 0EH CRC CHK High 0EH
(4) 10H: multi write, write multi data to registers.
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