CS31QUΒΆ

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This Function Block allows to acknowledge automatically error messages of AC31 remote modules. Error messages are stored on the AC31 remote modules until they are acknowledged. Even if the error has been removed, the error message is still pending on the module until acknowledgement and is also signalized to the PLC until the message is acknowledged.

Processing of the Function Block is enabled with a TRUE signal at input FREI, and the Function Block then acknowledges AC31 errors continuously.

It may take several PLC cycles to acknowledge an error on an AC31 module.

If the Function Block is enabled, it constantly checks whether an AC31 error of class 3 or 4 has occurred and acknowledges this error.

An AC31 error of class 3 has occurred:

The Function Block acknowledges the error on the AC31 remote module which signalizes the error and also clears the error message on the PLC, i.e. the error flag M 255,13 is reset and LED FK3 is deactivated.

Example of a FK3 error:

A remote module is disconnected from the CS31 system bus.

An AC31 error of class 4 has occurred:

The Function Block acknowledges the error on the AC31 remote module which signalizes the error and also clears the error message on the PLC, i.e. the error flag M 255,14 is reset.

Example of a FK4 error:

A remote module signalizes an open circuit.

Parameter Value
Library_File_Name CS31_AC500_V10.lib
Firmware V1.0
Type Type_Function_Block_History
Group Group/Subgroup