Chapter 5 238-2BC00 - Combination module Manual VIPA System 200V
5-38 HB97E - SM-AIO - Rev. 12/32
As soon as you've activated the diagnostic alarm a diagnostic alarm occurs
during the processing a process alarm in OB40 for the same channel and the
same event.
At accumulated diagnostic the CPU interrupts the user application and
branches to the OB82 for diagnostic (incoming). This OB allows you with an
according programming to monitor detailed diagnostic information via the
SFCs 51 and 59 and to react to it.
After the execution of the OB82 the user application processing is
continued. The diagnostic data is consistent until leaving the OB82.
After error correction automatically a diagnostic (going) occurs if the
diagnostic alarm release is still active.
In the following the record sets for diagnostic (incoming) and diagnostic
(going) are specified:
Record set 0 (Byte 0 to 3):
Byte Bit 7 ... Bit 0 Default
0 Bit 0: Module malfunction
Bit 1: internal error
Bit 2: reserved
Bit 3: channel error present
Bit 7 ... 4: reserved
00h
1 Bit 3 ... 0: Module class
1000: Function module
Bit 4: Channel information present
Bit 7 ... 5: reserved
18h
2 00h (fix) 00h
3 Bit 5 ... 0: reserved
Bit 6: process alarm lost
Bit 7: reserved
00h
After error correction automatically a diagnostic (going) occurs if the
diagnostic alarm release is still active.
Record set 0 (Byte 0 to 3:)
Byte Bit 7 ... Bit 0 Default
0 00h (fix) 00h
1 Bit 3 ... 0: Module class
1000: Function module
Bit 4: Channel information present
Bit 7 ... 5: reserved
18h
2 00h (fix) 00h
3 00h (fix) 00h
Diagnostic alarm
Record set 0
Diagnostic (incoming)
Record set 0
Diagnostic (going)
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