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PI Interface for OPC Alarms and Events

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Buffer time and Maximum events

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  • Last UpdatedOct 27, 2026
  • 1 minute read

The default for the command arguments buffer time (/BTM) and maximum events (/MXE) is zero.

This may not be sufficient in all cases for the DeltaV OPC AE server.

These numbers are based on several factors, for example, the number of sources and the rate at which alarms and events occur on the server. It is recommended to test these parameters and make changes accordingly.