Delta Electronics VFD S 115V Series User Manual page 123

Chapter 5 Parameters|VFD-S Series
3.2 ADR (Communication Address)
Valid communication addresses are in the range of 0 to 254. A communication address
equal to 0, means broadcast to all AC drives (AMD). In this case, the AMD will not reply
any message to the master device.
00H: broadcast to all AC drives
01H: AC drive of address 01
0FH: AC drive of address 15
10H: AC drive of address 16
:
FEH: AC drive of address 254
For example, communication to AMD with address 16 decimal (10H):
ASCII mode: Address='1','0' => '1'=31H, '0'=30H
RTU mode: Address=10H
3.3 CMD (Command code) and DATA (data characters)
The format of data characters depends on the command code. The available command
codes are described as followed: Command code: 03H, read N words. The maximum
value of N is 12. For example, reading continuous 2 words from starting address 2102H
of AMD with address 01H.
ASCII mode:
Command message:
ADR 1
ADR 0
CMD 1
CMD 0
Starting data
address
Number of data
(count by word)
LRC CHK 1
LRC CHK 0
END 1
END 0
5-66
STX ':'
'0'
'1'
'0'
'3'
'2'
'1'
'0'
'2'
'0'
'0'
'0'
'2'
'D'
'7'
CR
LF
Response message:
STX
ADR 1
ADR 0
CMD 1
CMD 0
Number of data
(Count by byte)
Content of starting
address
2102H
Content of address
2103H
LRC CHK 1
LRC CHK 0
END 1
END 0
Revision August 2008, SE09, SW V2.61
':'
'0'
'1'
'0'
'3'
'0'
'4'
'1'
'7'
'7'
'0'
'0'
'0'
'0'
'0'
'7'
'1'
CR
LF