PART 3: CX-Server Runtime
GLOSSARY OF TERMS – CX-Server Runtime OMRON
CX-Server Runtime_Page 88 Revision 2.0
Default A value automatically set by a program in the absence of user input or on initial entry
to an application; such values can be overwritten.
Device group A class of devices which share similar properties, each group can be sub-divided into
device types.
Device type A type of OMRON PLC.
Device A type of OMRON automation device, either a PLC, Temperature Controller,
Memory Card Writer or PROM Writer.
Dialog A window asking for some form of response from the user, usually in the form of
either entering requested information, selecting displayed data, or confirming an
operation.
DLL Dynamic Link Library. A program file that although cannot be run stand-alone as an
executable, can be utilised by one or more applications or programs as a common
service. DLL files have a *.DLL extension. DLL’s comprise a number of stand-alone
functions.
Double Floating Point Double Floating Point (LREAL) type is as the IEEE754 Double precision (1.7E
+308/-307) as defined by Microsoft®.
Download Refer to Transfer to PLC.
Drag The act of moving an item on the screen by selecting it with the mouse, and keeping
the mouse button depressed, moving the mouse until the item has reached the required
location. The mouse button is then released.
Driver The software unit which controls the communications between a computer and PLC,
translating any information passed between them into a format that the receiving
Device can understand.
Driver Management Tool A tool to facilitate the addition of new drivers and removal of drivers from your
computer.
Dynamic Data Exchange The method of transferring data (and possibly instructions) between applications via
the establishment of reference links between them.
EEPROM Electrically Erasable Programmable Read Only Memory.
Elements The number of address units which start at a specified data location.
End Connection The final communication link between computer and PLC, or in the case of a
Network configuration, gateway PLC to PLC.
Ethernet A 10 MB baseband local area network with each Device attached to the network
having equal status and therefore the ability to transmit as, and when, required
(provided the line isn’t busy).
Even parity The number of 1s in a data transmission is even.
Expansion memory The memory available to a CPU in addition to conventional memory.
File memory An area of CPU memory allocated to the storage of data.
FINS Factory Intelligent Network Service.
FinsGateway An OMRON communication type supported by CX-Server.
Floating Point A data format supported by CX-Server.
Folder A structure which organises the files in computer memory or on disk. Also known as
a ‘directory’.
Frame length The waiting time before data is transmitted across the network
Gateway device A Device connecting two networks of different architectures together.
Gateway PLC A PLC which acts as a link to another network.
Group A sub-directory within a CX-Server project hierarchy which contains points and/or
further (subsidiary) groups.
Hard disk A disk permanently mounted on its drive.
Hierarchy The structure of a CX-Server project from the root directory down through any sub-
directories (groups) to individual points contained within those groups.
Host link unit The interface between a PLC and a host computer.
Icon Pictorial representations of computer resources and functions. Many icons are used by
CX-Server components and tools as part of the GUI.
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