AIF_wControl system variable without function

Which products are affected?
ECS Application OPERATING SYSTEM  <=V8.3

What happens?
The AIF_wControl system variable (AIF_IO_Management system block) can be used to send a command to the AIF module.

When does the problem occur?
The reaction described above occurs when using the AIF_wControl system variable.

Diagnostics options?
None

Short-term measures/recommendations?
Use code C2120 to send commands to the AIF module, e. g. using the L_ParWrite function block.

Evaluation:
The functional restriction occurs whenever the AIF_wControl system variable is used to send commands from a PLC program to the AIF module, e. g. EMF2175IB. The functional restriction is detected at the latest during commissioning.

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