Response Electronics CL6011B Especificaciones descargar pdf (Pagina 287)

Glossary

Original Ć June 1990 CE4.2:CL6211

Glossary

Absolute Alarm An alarm which is triggered when the signal that is being monitored

reaches an absolute level, as opposed to a level which is relative to

another value. High Alarms and Low Alarms are types of absolute

alarms. [See Deviation Alarm.]

Accumulator A register or other memory location that temporarily holds the result of a

calculation or logic operation.

ACIA Acronym: Asynchronous Communications Interface Adapter

A/D Acronym: AnalogĆtoĆDigital, or Analog to Digital Converter

Adaptive Control

A control technique that involves automatic change of control parameter

values to improve the performance of the control system.

Adaptive Gain A type of primary control algorithm which allows the proportional gain to

change based on the value of an analog signal, a discrete signal, the

process variable, the implied value position, or the process error.

Address One or more integers arranged to identify the location of a device or

logical unit of an instrumentation system. In PROVOX systems, address

values identify such things as data highway, device, file, card, and

channel.

AEUP Acronym: Auxiliary Engineering Unit Pair

AFP Acronym: Auxiliary Function Parameter

AI Acronym: Analog Input

Alarm Deadband

The amount by which the PV must return within normal limits for the

system to clear an alarm. (For example, if the system activates an alarm

as soon as the PV exceeds 100 percent, and the deadband is 5 percent,

the system will not clear the alarm until the PV drops to 95 percent.)

Alarm Trip Point

The userĆdefined value, near either end of a measured variable range, at

which the system activates an alarm. Such activation occurs as the

measured variable moves out of range (for example, going below the trip

point for a low alarm).

Abs - Ala

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Response Electronics CL6011B Especificaciones Pagina 287