
Installation and Operating Handbook
4.2.1.1
Instruction 20 (Device status request)
Table 4.3: Device status request message format (instruction 20)
Message
byte no.
Set value / example
Length
(bytes)
Description
1
02
1
STX
2
7
1
Number of bytes
3
32
1
Unit address
4
20
1
Instruction number
5
'B'
1
Block up converter
6
?
1
Checksum
7
03
1
ETX
10
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PBU2000