Configuration control (option handling)
10.2 Creating the control data record
Distributed I/O system
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Error messages
In case of error, the RDREC instruction returns the following error messages via the
STATUS block parameter while reading the feedback data record:
Table 10- 8 Error messages
Invalid length; the length information in data record 197 is not correct.
H
Configuration control not configured
80B8
H
Parameter error
The following events cause a parameter error:
• Incorrect block ID in the header (not equal to 197)
• Invalid version identifier in the header
• A reserved bit has been set
• The same slot in the station option has been assigned to more than one slot in
the station master
10.2.5 Data records and functions
Supported data records and functions
The table below shows a comparison of the supported data records and functions depending
on the CPU/interface module used.
Supported data rec-
ords and functions
Control data record
Simplified control data
Read back control data
Read feedback data
* You can read back the control data record with the RDREC instruction.