Response Electronics CL6011B Spécifications télécharger pdf (Page 309)

Glossary

Original Ć June 1990 CE4.2:CL6211

Uninterruptible Power Supply (UPS)

A backup device for an AC power source. A UPS connects between the

AC power source and computer equipment. Should there be a failure of

or interruption in the AC power source, the UPS supplies continuous

power to the computer.

Unit A specific group of plant equipment that processes a particular batch.

For control purposes, such a unit is one entity. Also, a PROVOX point

type. A unit point has the ability to control a plant process unit.

Unit Operation A batch control program; a list of controller instructions to perform

specific mathematical and logical functions, as part of a timeĆandĆevent

sequence for a defined set of plant equipment (the unit). A unit operation

consists of phases, each of which is a set of related steps. Each step is

an elemental control action.

Unit Operations Controller (UOC)

A PROVOX controller designed for batch, sequencing, discontinuous,

and unitĆoriented continuousĆcontrol applications.

Unsolicited An automatic, repetitive reporting method for routine operating data.

UOC Acronym: Unit Operations Controller

Upload The movement of configuration instructions from system devices to a

configuration device or interface. An upload lets the current values of

tuning parameters be incorporated into the configuration source files,

eliminating specific user entry. Uploads also may be used to verify that

configuration instructions are correct.

UPS Acronym: Uninterruptible Power Supply

Utility Programs Standard useful programs, such as those for sorting files, copying disks,

downloading, and performing diagnostics.

UVROM Acronym: Ultraviolet ReadĆOnly Memory

Valve Output (VO)

A controller voltage or current output that can be used by an actuator to

open or close a valve.

VDU Acronym: Video Display Unit

Velocity Limit A restriction on the rate of change of a particular variable.

Uni - Vel

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Response Electronics CL6011B Spécifications Page 309