GLOSSARY - TM-5-6350-275-24-P0529

TM 5-6350-275-24&P

GLOSSARY

TERM

EXPLANATION

Secondary Bearer

An alternative communications path to a remote station, used by the master

station when unable to acquire data by the remote station's primary bearer.

Security Zone

A zone with points set to data category 16, indicating a security connection.

Security zones are a required feature of the access control subsystem, and

indicate a protected area with restricted access.

Segmented Data

Point data archived by a remote station, rather than the master station.

Sensors

Devices used to detect unauthorized access into a secure area or zone.

Sequence

A series of pictures from one or more cameras which each appear on a

monitor for a predetermined time period and are displayed repeatedly in a

predetermined order.

Set Point Control

Describes the operation of an item of equipment by an amount entered by

the operator.

Simple Mimic

A display showing current data using objects that change shape or color to

reflect changes occurring at the plant. Simple mimics can also include timed

archived data for predetermined points on a line graph or bar chart.

Single-line Poller

Describes a configuration in which a poller communicates with a selected

range of remote stations by a single bearer.

Soft-Keys

Keys whose functions vary according to the software presently being run at

the terminal.

Spooled Printing

This term describes the printing of data using a spooler, rather than having

the output sent directly to a printer.

Spooler

An item of software at the master station which controls and manages the

data that is output to a peripheral device, such as a printer.

Standalone Unit

A card reader unit which is not connected to the master station/remote

station network.

Station

An alternative term for Remote Area Data Collector.

Station Failure

The condition in which the master station is unable to communicate

successfully with a remote station over the available bearer(s), after a

predetermined number of attempts.

Station Summary

A display containing a list of stations and details of their operational

condition.

Status Frame

The top line of the display in the operator environment, which contains the

operator's identity, the workstation's operating mode, and the time and date.

Status Phrase

A short phrase describing one of a point's valid states.

Status Point

A point whose condition is represented as a state (for example, on/off,

open/closed, etc.) rather than as a quantity. There are two types of status

point: binary and ternary

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