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Data Archive Reference

Performance equation scheduler statistics

  • Last UpdatedJul 15, 2025
  • 1 minute read

Attribute

Description

AlarmFuncCalls/sec

Rate of calls made to alarm functions.

ArcFindCalls/sec

Rate of calls made to PI Archive Subsystem for finding values.

ArcSummaryCalls/sec

Rate of calls made to PI Archive Subsystem for summarized values.

ArcValueCalls/sec

Rate of calls made to PI Archive Subsystem for compressed events.

FailedEvaluations/sec

Rate of PE evaluations that return the digital state Calc Failed.

NumberOfPEs

Number of Performance Equations.

SnapshotCalls/sec

Rate of calls made to PI Snapshot Subsystem to obtain snapshot event(s).

SnapshotEvents/sec

Rate of snapshot event retrieval.

SteamFuncCalls/sec

Rate of calls made to steam functions.

TotalEvaluations/sec

Rate of PE evaluations.

Statistics for PI Performance Equation Scheduler also include UniInt-specific statistics. See "UniInt Performance Counters" in the

UniInt Interface User Manual

for details.

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