Motorola DH6200 Specifications download pdf (Page 44)

2-32 Master Glossary of Terms and Symbols

TR4.0:PROVOX Revision A — April 1997

DIGCOMM

Abbreviation: Digital Communication

This remote detail display parameter

(DDP) attribute, 236:DIGCOMM, allows

the user who has configured the Loss Of

Digital Communications smart error state

as WARNING to see the condition of the

digital communication when a point

indicates that a warning has occurred.

See Smart Error State (SES).

digital

A term applied to a signal or device that

uses binary digits to represent continuous

values or discrete states.

digital command language (DCL)

DCL provides over 200 commands and

functions to use in communicating with

the VMS operating system.

Digital Equipment Corporation (DEC)

A manufacturer of general purpose

minicomputers. DEC builds VAX and AXP

series computers, which are used in or

canbeinterfacedwithPROVOXr

systems by way of CHIP software.

PROVOX software products usually are

compatible with at least one DEC

computer model.

digital input (DI)

A number value input.

digital output (DO)

Transducer output in the form of a series

of discrete quantities coded in a system

of notation.

digital signal processing

The arithmetic processing (such as

filtering or amplification) of real-time

signals which are sampled at regular

intervals and digitized.

digital to analog converter (DAC or

D/A)

An electronic circuit (usually an IC) that

converts a digital signal ( d igital data) into

an analog signal of corresponding value.

digital transducer

A transducer incorporating HART

compatible signals used for additional

control and operator display capabilities.

digital valve controller

A valve controller incorporating HART

compatible signals used for additional

control and operator display capabilities.

digital volt meter (DVM)

A test instrument that measures voltage,

current, or resistance, and gives

numerical readings.

DIO

Acronym: Discrete Input/Output

DIP

Acronym: Dual In-line Package

DIP switch

A dual in-line package (DIP), a common

type of housing for integrated circuits (in

this case, a switch), which is easily

dip-soldered into printed circuit boards.

direct acting

Control action in which the absolute value

of the output signal increases as the

absolute value of the input signal

(process variable) increases.

direct control point (DCP)

A regulatory controller point type which

provides control for continuous

processes. A DCP is a collection of

setpoint, process variable, and valve

position values along with tuning

parameters for a control loop.

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