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AVEVA™ Pipeline Operations for Gas

Gas quality Row Edit: Inhibits tab

  • Last UpdatedApr 24, 2025
  • 2 minute read

You can elect to inhibit the alarm and event information that is shown to the Operator. There are a few alarm and event situations that inhibiting the alarm and event logging will effect:

  • Normal alarms and events are generated when a gas quality (GQ) was previously in an error and alarm state. By default, when the conditions for successful functioning are met, a Normal Alarm and Normal Event are recorded to inform the Operator that things have returned to normal. If you select the Normal Alarm and Normal Log checkboxes on the Inhibits tab, then the notifications for things returning to normal are not presented to the Operator.

  • Off-Normal alarms and events can occur in many situations. For example, an issue reading the input data required to perform periodic host calculations or calculating the GQ values will generate an Off-Normal alarm and event. If you select the Off-Normal Alarm and Off-Normal Log checkboxes on the Inhibits tab, then notifications for things that are abnormal are not presented to the Operator.

  • Setpoint limit alarms occur as a result of one or more components exceeding the valid range of data defined in the Setpoint Limits tab. Selecting Inhibit Setpoint Limit Alarms inhibits both normal and off-normal alarms related to setpoint limits. The system will still generate events related to setpoint limits.

    Selecting the checkboxes on the Inhibits tab of the gasquality Row E

The following table describes fields on the gasquality Row Edit: Inhibits tab.

Item

Description

Off-Normal Alarm

Select to inhibit off-normal alarming. The system will not generate an alarm when the GQ changes from a normal state to an off-normal state.

Normal Alarm

Select to inhibit normal alarming. The system will not generate an alarm when the GQ changes from an off-normal state to a normal state.

Off-Normal Log

Select to inhibit off-normal logging. The system will not log an event when the GQ changes from a normal state to an off-normal state.

Normal Log

Select to inhibit normal logging.

The system will not log an event when the GQ changes from an off-normal state to a normal state.

Inhibit Setpoint Limit Alarms

Select to inhibit normal and off-normal alarming related to setpoint limits.