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AVEVA™ Plant SCADA

[Alarm]UseInOperatorForGroupCommands

  • Last UpdatedOct 13, 2025
  • 2 minute read

This parameter has been provided in Plant SCADA 2023 R2 Update 15 (delivered in October 2025). It controls whether the IN operator is used by Cicode alarm functions that can be passed a handle for a group that contains more than one item. This includes the following Cicode functions:

The IN operator evaluates to TRUE when the value of the specified field matches any of the values included in an identified list of items.

When this parameter is enabled (1), the IN operator will be used by the above alarm Cicode functions under the following circumstances:

  • Mode is set to 2 (category) or 3 (priority) AND

  • Value is set to a group handle that represents a group containing multiple items.

If this parameter is disabled (0), a simple equal/OR operator is used, which will impact the response time when a group with many values is passed to AlarmAck or AlarmClear.

The parameter should be set on the display client, and the display client process must be restarted after changing the parameter.

warning2

UNINTENDED EQUIPMENT OPERATION

  • Do not enable this parameter until all alarm servers in your system have been upgraded to Plant SCADA 2023 R2 Update 15 (delivered in October 2025).

  • If you enable this parameter and an AlarmAck, AlarmClear, AlarmEnable or AlarmDisable command is sent to an alarm server that does not have the required update, then all alarms on that server will be impacted. For example, all alarms will be acknowledged regardless of whether they are in a specified category or priority.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Allowable Values:

0 - (Disable)

1 - (Enable)

Default Value:

0

See Also

Alarm Parameters

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