quality value read co to jest
ABAP definicja quality of OPC value read. Co znaczy not the OPC value requested was determined.
Znaczenie quality value read definicja.

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Definicja quality of OPC value read

Co znaczy:

An indication of whether or not the OPC value requested was determined reliably, whether a communication connection existed and thus a determination of how meaningful the value of an OPC item is.

The OPC standard defines different quality classes that specify a value's quality in more detail. A numeric value is passed for every quality class. The SAP ODA Connector evaluates the quality values passed and issues a suitable information or error message depending on the quality value combination.

Słownik i definicje SAPa na Q.