Balluff BNI PNT-502-102-Z015 - Diagnostics; Diagnostics Message Structure

www.balluff.com
40
8 Diagnostics
Diagnostics
8.1.
message
The diagnostics message that is generated by the module in the event of an error is usually
read out by the PLC and processed. It is also possible to read out the diagnosis from the
module by means of function modules and evaluate it.
The diagnostics message is 34 bytes long and divided into 3 blocks:
Block Header, Alarm Specifier, Channel Properties
Byte
Value
Meaning
Block
0
00
Block Type
Block Header
1
02
2
00
Block Length
3
1E
4
01
Block Version High
5
00
Block Version Low
6
00
Alarm type
7
01
8
00
API
9
00
10
00
11
00
12
00
Slot number
13
01
14
00
Subslot number
15
01
16
00
Module ID
17
00
18
00
19
17
20
00
Submodule ID
21
00
22
00
23
01
24
A8
AlarmSpecifier
AlarmSpecifier
25
36
26
80
User Structure ID
27
00
28
00
Channel number
29
08
30
08
ChannelProperties
ChannelProperties
31
00
32
00
ChannelErrorType
33
1 A