Siemens SENTRON 3WA - Page 71

PROFINET IO
6.4 Interrupt, error and system messages
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02
69
Block type for diagnostic and maintenance alarm
The COM190 uses the "Diagnostic and maintenance" block type to signal incoming and
outgoing diagnostic and maintenance alarms as an "Extended channel diagnosis". The
"UserStructureIdentifier" for this block type is always 0x8002 for this reason.
Structure of the diagnostic and maintenance alarm
Interrupt
Length
UserStructureIdentifier
0x8002 (Extended channel diagnosis)
2 bytes
ChannelNumber
0x8000 (submodule)
2 bytes
ChannelProperties
2 bytes
ChannelErrorTypes
2 bytes
ExtChannelErrorType
2 bytes
ExtChannelAddValue
4 bytes
In the case of maintenance alarms, the additional maintenance information is transferred via
the "ChannelProperties" field and the "Qualifier (Bit 9 / 10)" bits.
"ChannelProperties" data block
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
.Direction
.Specifier
.Qualifier
.Acc.
.Type
"ChannelProperties.Type (Bits 0 to 7)" data block
Value
Meaning
0
If ChannelNumber has the value 0x8000.
1
1 bit
2
2 bits
3
4 bits
4
8 bits
5
16 bits
6
32 bits
7
64 bits
"ChannelProperties.Accumulative (Bit 8)" data block
Value
Meaning
0
No channel error group signal
1
Channel error group signal (more than one channel affected)