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Schneider Electric USA Website

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Unity Pro or Control Expert DFB pin usage evaluation
Issue
Looking for a function that will report whether a DFB input pin is connected or linked to a Variable.

Product line
Control Expert, Unity Pro

Resolution
The IS_PAR_CON block is a function used in DFB code to know if an input parameter (pin) or an input/output parameter (pin) is connected or linked to a variable when you use an instance of the DFB.

NOTE: This function is only usable inside a DFB. It is not permitted to be used outside of DFB code.

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