Watlow LogicPro - Manual (Page 286)

Glossary LogicPro User’s Guide
270 Watlow Anafaze Doc.# 28002-00 Rev 3.00
Bitwise
A logic tool that allows you to apply the principles of
Boolean Logic to the individual bits of a byte. Not all
programming languages support bitwise logic, but C
does support a handful of operators:
>> ( Shift bits left)
<< ( Shift bits right)
& (AND - compares two groups of bits)
| (OR - compares two groups of bits)
^ (XOR - compares two groups of bits)
~ (complements a group of bits)
Block
In LogicPro , block may refer to either Function Blocks
or block of data. A block of data represents input or
output from
LogicPro to a controller Resource. Log-
icPro can transfer data in blocks (e.g., to integer vari-
ables) between the IO and the PC.
Boolean
Variable condition that is either True or False and hav-
ing a size of 1 bit.
Boolean Logic
A system of logic invented in the 1850's and named af-
ter its inventor George Boole. This is the study of op-
erations that can be carried out on variables that can
only have on of two values 0 (FALSE) and 1 (TRUE).
Borland C++
A programming language marketed by Borland and
based on the C programming language.
Branch
On a Ladder Diagram, parallel spur used to create
“OR” and other logic structures.
Build
In LogicPro , the act of compiling an SFC, Ladder or
FBD Program. A build results in an executable file,
i.e., *.exe or *.dll.
Button
Item on the toolbar (such as a step or function block)
that can be selected for insertion into the process con-
trol Program. Toolbar buttons remain active until an-
other button is selected.
Button, Radio
See Radio Button .
Byte
A sequence of eight bits. Range 0 - 255.
C
C
A small robust high-level programming language de-
veloped at Bell Labs in the 1970's by Brian Kernighan
and Dennis Ritchie.
Cascade
Arrangement of open Program windows so just their
title bars are displayed, with the current active Pro-
gram window in full view.
Case Sensitive
The ability of a Program to differentiate between up-
per and lower case letters. Programs that can make this
distinction are called “case sensitive” and would view
Luck, luck, LUCK and LucK as four different entries.
Checkbox
Dialog box item that toggles a setting between On and
Off. When the option is On, an X appears within the
checkbox.
Circuit Element
The various graphic elements that make up a LogicPro
Project such as; coil, contact etc.
Click
Depressing one of the buttons on your mouse or point-
ing device.