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AVEVA Enterprise SCADA

Modify output fields and flags

  • Last UpdatedApr 24, 2025
  • 1 minute read

Several flags and fields on output records can be modified by the Application Calculation Engine (ACE).

The most significant field that can be modified is the output field itself. Since any numeric field in the RealTime database (RTDB) can be written to with the ACE, there are multiple scenarios that can exist. An output field may be the RealTime krunch field for a record or it may some other numeric field on such a record or it may be a numeric field on a non-telemetered record. If the ACE is not updating the telemetered field on a record, then only the field written to is modified. As an example, if ACE writes to analog.1.tolerance, then it is only the field that is updated, even if updateFresh is configured to be true. If, however, the ACE instead writes to analog.1.curval, then other fields may be affected.

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