Watlow LogicPro - Manual (Page 288)

Glossary LogicPro User’s Guide
272 Watlow Anafaze Doc.# 28002-00 Rev 3.00
Cross Reference
LogicPro feature that enables the developer to view
the settings of variables to help discover logic or Pro-
gram errors.
Current Directory
This is the directory in which you are currently work-
ing. The operating system assumes that all referenced
files exist in this directory unless you specify a differ-
ent path.
D
Dialog box
On-screen box accessed to view and adjust settings
and input information.
DDE
See Dynamic Data Exchange .
Debug
The art of finding and correcting errors in a design or
Program.
Declaration
In programming, this is the act of assigning a name and
data type to a variable or constant.
Default Value
The initial value of a variable if you do not declare an
initial specific value.
Device
A component or machine that attaches to a computer.
Examples of devices include printers, modems, con-
trollers, etc. Each device requires software, called
drivers, to allow the computer and the device to com-
municate with each other.
Directory
Part of an operating system's organizational hierarchy.
The directory is a file that keeps information on other
files that are, figuratively speaking, stored within it.
Directed Links
SFC element which, with transitions, directs the Pro-
gram flow from one step to another.
DLL
An acronym for Dynamically Linked Library.
Documentation
Feature of LogicPro that allows the developer to attach
text and comments to Program elements in the control
process Program.
Download
The transfer of data, in the form of a file, from a source
device to a peripheral device.
Downloading
The act of performing a download.
Drive
A shortened form of diskdrive. Any media on which
data can be stored and retrieved.
Driver
Software that allows a computer and a device to com-
municate with each other. See
Device .
Dynamic Data Exchange
Communication protocol that allows LogicPro to send
and receive data and instructions to other Windows ap-
plications (such as Excel) in a client-server relation-
ship.
E
Element
Basic programming unit of LogicPro , such as a step or
transition (in SFC), or a coil or function block (in Lad-
der diagram).