Chapter 2 Analog input modules Manual VIPA System 200V
2-24 HB97E - SM-AIO - Rev. 12/32
The diagnostic data uses 12byte and are stored in the record sets 0 and 1
of the system data area.
When you enable the diagnostic interrupt in byte 0 of the parameter area,
modules will transfer record set 0 to the superordinated system when an
error is detected.
Record set 0 has a predefined content and a length of 4byte. The content
of the record set may be read in plain text via the diagnostic window of the
CPU.
For extended diagnosis during runtime, you may evaluate the 12byte wide
record set 1 via the SFCs 51 and 59.
At present diagnosis, the CPU interrupts the user application and branches
into the OB 82. This OB gives you detailed diagnostic data via the SFCs 51
and 59 when programmed correctly.
After having processed the OB 82, the user application processing is
continued. Until leaving the OB 82, the data remain consistent.
Record set 0 (Byte 0 to 3):
Byte Bit 7 ... Bit 0 Default
0 Bit 0: Module malfunction
Bit 1: reserved
Bit 2: External error
Bit 3: Channel error present
Bit 6 ... 4: reserved
Bit 7: Wrong parameters in the module
00h
1 Bit 3 ... 0: Module class
0101 Analog module
Bit 4: Channel information present
Bit 7 ... 5: reserved
15h
2 reserved 00h
3 reserved 00h
Diagnostic data
Evaluate
diagnosis
Record set 0
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