Configuration control (option handling)
7.3 Creating the control data record
Distributed I/O system
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System Manual, 08/2021, A5E31861578-AJ
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 messages
Error code
Meaning
80B1
H
Invalid length; the length information in data record 197 is not correct.
80B5
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 was set
•
Multiple slots in the station master are assigned to the same slot in the station
option
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