OMRON GLOSSARY OF TERMS - CX-Supervisor User Manual
Release 2.0 Page 329
GLOSSARY OF TERMS
ADO ADO stands for Active Data Objects and is data access technology which
uses OLE-DB to access data sources in a uniform way e.g. MS-Access
databases, MS-Excel spreadsheets and Comma Separated Variable files.
AND A logic operator used to interrogate Boolean type points. AND returns
‘TRUE’ if all arguments are ‘TRUE’. An example of AND is that if a is a
statement and b is a statement, AND returns ‘TRUE’ if both a and b are
‘TRUE’. If one or both statements return ‘FALSE’ then AND returns
‘FALSE’.
Application A software program that accomplishes a specific task. Examples of
applications are CX-Supervisor, CX-Server and Microsoft Excel. CX-
Supervisor and its development environment allows the creation and
testing of new applications through a Graphical User Interface (GUI).
Arguments Words, phrases, or numbers that can be entered on the same line as a
command or statement to expand or modify the command or statement
within the CX-Supervisor script language. The command acts on the
argument. In essence the command is a verb, and the argument is the
object of the verb. An example of an argument in CX-Supervisor is
“DDETerminate(channel)” where DDETerminate is a command
within the script language, and channel is the argument upon which the
command will act.
ASCII An old standard, defining a set of characters. Officially using only 7 bits
allows definitions for only 127 characters, and does not include any
accented characters.
Bitmap The representation of an image stored in a computer’s memory. Each
picture element (pixel) is represented by bits stored in the memory. In CX-
Supervisor a bitmap image can be installed as a single object.
Boolean type A type of point where the value of the point can be one of two states.
Essentially the two states are ‘0’ and ‘1’, but these states can be assigned a
meaningful designation. Examples are:
State Example Example Example Example
0 ‘OFF’ ‘FALSE’ ‘OUT’ ‘CLOSED’
1 ‘ON’ ‘TRUE’ ‘IN’ ‘OPEN’
See also: AND, NOT and OR.
COM COM is a Microsoft technology that allows components used to interact.
Communications Driver The relevant communications management system for OMRON PLCs in
conjunction with Microsoft Windows, providing facilities for other
SYSMAC software to maintain PLC device and address information and to
communicate with OMRON PLCs and their supported network types.
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