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CMD (Command reference) and DATA (data character)
Format of data characters depends on command code. Available command code is explained below:
Command code: 03H, available to read N characters, Max (N) =12. For example: From address 01H to starting
address 2102H of inverter to read 2 characters continuously.
ASC
Ⅱ
Mode:
Command
STX
‘:’
ADR1
‘0’
ADR0
‘1’
CMD 1
‘0’
CMD0
‘3’
Starting data address
‘2’
‘1’
‘0’
‘2’
Number of data
(Counting in “word”)
‘0’
‘0’
‘0’
‘2’
LRC CHK 1
‘D’
LRC CHK 0
‘7’
END 1
CR
END 0
LF
Response
STX
‘:’
ADR1
ADR0
‘0’
‘1’
CMD 1
CMD0
‘0’
‘3’
Number of data (Counting
in “byte”)
Starting data address
2102H
‘0’
‘4’
‘1’
‘7’
‘7’
‘0’
Data address
2103H
‘0’
‘0’
‘0’
‘0’
LRC CHK 1
LRC CHK 0
‘7’
‘1’
END 1
END 0
CR
LF
RTU Mode:
Command
ADR
01H
CMD
03H
Starting data address
21H
02H
Number of data
(Counting in “word”)
00H
02H
CRC CHK Low
6FH
CRC CHK High
F7H
Response
ADR
01H
CMD
03H
Number of data
(Counting in “byte”)
04H
Starting data address
2102H
17H
70H
Data address
2103H
00H
00H
CRC CHK Low
FEH
CRC CHK High
5CH