MMC: Bits "IsPresent" and "IsMandatory" without function in the c250-S (corrected from V1.9)

Corrected from:
Cabinet Controller c520 V1.9
Cabinet Controller c550 V1.9

Response of the new version:
When using the modular machine configuration, the EtherCAT slave properties IsPresent and IsMandatory are automatically updated for non-Lenze EtherCAT slaves and Lenze safety bus couplers, as well as Lenze safety I/O modules.
 
What happens?
When using the modular machine configuration, the EtherCAT slave properties IsPresent and IsMandatory are not automatically updated for non-Lenze EtherCAT slaves and Lenze safety bus couplers, as well as Lenze safety I/O modules.
 
When does the behaviour occur?
If an EtherCAT slave is not implicitly updated by the motion or safety PLC.
 
Which products are affected?
Cabinet Controller c520
Cabinet Controller c550

Short-term measures:
The EtherCAT slave instance can be called explicitly via the user program.

Automatic Translation 

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/202200402/1/
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