PART 2: CX-Server PLC Tools
GLOSSARY OF TERMS – CX-Server PLC Tools OMRON
CX-Server PLC Tools Page 176
Gateway device A Device connecting two networks of different architectures together.
Gateway network address The address of a network acting as a gateway.
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.
GUI Graphical User Interface. Part of a program that interacts with the user and takes full
advantage of the graphics displays of computers. A GUI employs pull-down menus and
dialog boxes for ease of use. Like all Microsoft Windows based applications,
CX-Server has a GUI for each component and tool.
Hard disk A disk permanently mounted on its drive.
Hexadecimal A data format supported by CX-Server.
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.
High Link A network driver.
Host computer A computer responsible for data management and for overall control of the system.
Programs and data are downloaded to a PLC from the host computer.
Host link system A system comprising one or more host computers connected to one or more PLCs by
host link units; these units facilitate the transfer of data between the PLC(s) and the host
computer.
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.
IDSC device type An OMRON PLC device supported by CX-Server.
Import tool This CX-Server tool is used for addresses and PLCs defined using the CVSS and LSS
products.
Input bit data area An area of PLC memory containing the status of an input Device.
Input bit The location within memory indicating the status of an input.
Input device A Device which sends signals to a PLC.
Input The signal sent to a PLC from an external device.
Instruction A statement indicating an operation to be performed and identifies any data involved in
this operation.
Intel Hex A PLC device also known as a PROM Writer.
Interface Hardware or software employed to link the elements within a system, including
networks, programs and computers.
Internal data type The format of the data held at an address in PLC memory; for example, bit or signed
character binary.
Internode test An echo test performed to check the condition of a PLC on a network node.
Invoking application An application such as CX-Programmer and CX-Protocol that utilises components and
tools belonging to CX-Server.
IO bit A bit which can hold data entered into, or received from, the system.
IO Table component This CX-Server component retrieves configured PLCs rack and address data.
IO type Input /Output type. An attribute of a point or symbol that defines the origin and
destination of the data for that point or symbol. The data can originate (be input from)
and is destined (is output to) to the internal computer memory, PLC or DDE target
application.
IO Input /Output.
IP address table A table containing the IP addresses for all the devices on the Ethernet.
IP address An address for a device on the Ethernet.
IP router table A table containing the addresses for each interface on a network.
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