Watlow LogicPro User Manual

Page 289

LogicPro User’s Guide

Glossary

Doc.# 28002-00 Rev 3.00

Watlow Anafaze

273

Executable File

The output of compiled source code or object code
which can be read and executed directly by a computer
processor.

Executable Path

Operating System Path where the Executable File re-
sides.

Execution Library

See

Library

Export Variables

Saving Variables from

LogicPro

Programs, Projects or

Resources. These variables are normally written to a
reusable file.

Expression

A combination of symbols, constants and variables
that represent a value and are recognizable to the pro-
gramming language.

FALSE

In Boolean Logic and Algebra FALSE is one of two
possible values of a logical expression. TRUE is the
other condition.

FBD

See

Functional Block Diagrams

Field

An area set aside for specific data. For example, an
Employment Application will contain several fields
for your name and your address. In database manage-
ment you will find three types of fields: required, op-
tional and calculated.

FIFO

First In First Out.

File Extension

In Microsoft Disc Operating System, this refers to the
three characters following the “.” in a file name. For
example, “txt” is the file extension for the file named
“readme.txt.”

Flag

A hardware or software switch that can be either on or
off and signals a specific condition is present.

Flag Variable

Generally, a Boolean variable used for identifying a
condition or event in a Program.

Flash Disk Drive

An EEPROM that can be programmed in place by us-
ing specific algorithms.

Folder

See

Directory

Function

A part of a Program that performs a specific task.

Function block

A controller programming element consisting of a data
structure partitioned into input, output, and internal
variables.

Global Variable

Variable which can be used in all Resources within a
Project or all Programs within a Resource.

GUI

Graphical User Interface

Graphic User Interface

A type of environment, making extensive use of a
computers graphic abilities, which defines your inter-
action with the computer and its software. Windows