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What is Kepware OPC?

OPC SystemsOPC is a client/server technology. One application acts as the server providing data, and the other acts as a client using data. OPC is a widely accepted industrial communication standard that enables the exchange ...

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Connect a button to the OperShelve tag

OperShelve The alarm instruction only processes the OperShelve tag on transition from cleared to set to prevent unwanted reshelving of the alarm. For example, if an operator presses a push button to shelve the alarm while the ProgUnshelve tag is set, ...

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