IMO SD1 Series - 7.4 Data Address Definition

SD1 Series Inverters Communication Protocol
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For instance: Write 5000 (1388H) to 0004H of the inverter whose slave address is 02H, write
50 (0032H) to 0005H of the inverter whose slave address is 02H, then the structure of this
frame is listed as below:
ASCII master command message (the
command sent by the master to inverter)
ASCII slave response message (the
message sent by the inverter to master)
START
':'
START
':'
ADDR
'0'
ADDR
'0'
'2'
'2'
CMD
'1'
CMD
'1'
'0'
'0'
High bit of starting
address
'0'
High bit of starting
address
'0'
'0'
'0'
Low bit of starting
address
'0'
Low bit of starting
address
'0'
'4'
'4'
High bit of data number
'0'
High bit of
data number
'0'
'0'
'0'
Low bit of data number
'0'
Low bit of data number
'0'
'2'
'2'
Byte number
'0'
LRC CHK Hi
'E'
'4'
LRC CHK Lo
'8'
High bit of data 0004H
content
'1'
END Hi
CR
'3'
END Lo
LF
Low bit of data 0004H
content
'8'
'8'
High bit of data 0005H
content
'0'
'0'
Low bit of data 0005H
content
'3'
'2'
LRC CHK Hi
'1'
LRC CHK Lo
'7'
END Hi
CR
END Lo
LF
7.4 Data Address Definition
The address definition of the communication data in this part is to control the running of the
inverter and get the state information and relative function parameters of the inverter.
7.4.1 Function code address format rules
The parameter address occupies 2 bytes with the most significant byte (MSB) in the front and
the least significant byte (LSB) in the behind. The ranges of the MSB and LSB are: