ANSI X3.28/SRIO DPA

GE Energy Services

CONFIGURATION GUIDE

 

RTU so that it appears to the master station as two or more

 

RTUs. This technique is usually employed as a means by

 

which to overcome the point-addressing limitations of a

 

particular protocol, or to form a logical grouping of data.

 

Abbreviated as LRU.

master

The client or host station or computer, with which the

 

RTU equipment communicates. Also referred to as a host

 

or host computer.

port

An interface point connecting a communications channel

 

and a device.

random-access memory

A type of temporary data storage (memory) that can be

 

read and changed while the computer is in use. Data stored

 

in random-access memory is lost if the system loses

 

power. Abbreviated as RAM.

remote terminal unit

A piece of equipment located at a distance from a master

 

station to monitor and control the status of outlying

 

equipment, and to communicate the information back to

 

the master station or host. Abbreviated as RTU.

source code

A piece of code that has not yet been compiled or

 

assembled (that is, it is still in the language it was

 

programmed in) and so cannot yet run on a machine.

WESDAC Configuration

A menu-oriented software program that operates on a

System

personal computer and allows you to download

 

configuration information to D20 RTUs or CPM RTUs.

WESDAC Interface

A module of software that manages the transfer, storage,

Node

and manipulation of data between data- collection

 

applications (DCA), data-processing applications (DPA)

 

and data-translation applications (DTA). Abbreviated as

 

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