Siemens SIMATIC ET 200AL System Manual page 76

Configuration control (option handling)
7.3 Creating the control data record
Note
The data in the feedback data record is always mapped for all modules. In a Shared Device
configuration, it is therefore irrelevant which IO controller the respective modules are
assigned to.
As long as no control data record was sent, a one-to-one module assignment is assumed for
the compilation of data record 197 (station master → station option).
Error messages
In the case of an error when reading the feedback data record, the RDREC instruction returns
the following error messages via the STATUS block parameter:
Table 7- 4
Error code
80B1
80B5
80B8
74
Error messages
Meaning
Invalid length; the length information in data record 197 is not correct.
H
Configuration control not configured
H
Parameter error
H
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 was set
• Multiple slots in the station master are assigned to the same slot in the station
option
Distributed I/O system
System Manual, 08/2021, A5E31861578-AJ