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Alarm Management for Process Control by Douglas H. Rothenberg

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APPENDIX 1

Definitions of Terms, Abbreviations, and Acronyms

What’s in a name?

—William Shakespeare

Term Description
A

Abnormal

The state of not being normal.

See normal.

Absolute alarm

Standard construction for most alarms. The present condition of a potential alarmed variable is compared against the preset alarm activation point. When exceeded, the alarm becomes active.

Dynamic modification of the alarm activation point and/or priority is permitted.

See enhanced alarming.

Ack

Acknowledge.

See acknowledge.

Ack’d

An alarm that has been acknowledged.

See Ack.

Acknowledge

The first operator action that indicates the recognition of an alarm to the alarm managing portion of the control system.

Activate

The alarm becomes “in ...

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