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OMRON
GLOSSARY OF TERMS – CX-Server – PLC Tools
Refresh parameter table
A table identifying the words in a Data Link to be refreshed for an individual
PLC.
Registered IO Table
The internal PLC table: this is the one used by the PLC when running,
regardless of the state of the actual hardware. It can be read and, for CVseries PLCs, written to by the CX-Server software.
Relay network address
The end network address which a PLC communicates.
Relay node number
The number of the network node through which a transmission must pass to
reach another network.
Relay table
A table containing the relay network addresses, node numbers and end network
addresses used within a FINS system.
Remote network
A network beyond the LAN to which access must be gained through a gateway
or bridge.
Remote Terminals
Further units that can be supported by CX-Server via the Sysmac-Bus Master
unit
Reset
Turning a bit or signal OFF or changing it to its set value or to zero.
Root
The highest level of a directory.
Root group
The highest level group in a CX-Server project.
Rotary switch
Indicates the method of calling a device by generating a series of pulses.
Routing table
A table containing the information necessary to allow communications between
different networks including local and gateway network address details.
Routing
The direction of data across a network from its source to its destination.
RS232
Industrial interface standard for serial communications.
RS422
Industrial interface standard for serial communications employing balanced
line circuits.
RTs
Remote Terminals.
Run Mode
PLC mode of operation during which device information is typically read-only.
Serial Connection
A direct connection between computer and PLC.
Server application
An application that can be used to view or interact with.
Server
1. Server is used in DDE functions to contain a link to an outside application.
Using DDE functions, CX-Server allows the manipulation of an outside
application as specified as the Server.
Refer also to DDE and OLE.
Refer also to Server application.
2. A Server is the central processing point of a Network which is accessible
to all computers. Networks affect CX-Server in that further associated
options are available if the computer Network is connected.
Revision 1.7
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