Installation and Operating Handbook
3.2.2.1
Instruction 40 (Unit status request)
Table 3.7: Unit status request message format (instruction 40)
Message
byte no.
Set value / example
Length
(bytes)
Description
1
02
1
STX
2
6
1
Number of bytes
3
32
1
Unit address
4
40
1
Instruction number
5
?
1
Checksum
6
03
1
ETX
12
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