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TERM
Unless otherwise specified, this manual uses the following terms.
Term Description
CC-Link IE Field Network A high-speed and large-capacity open field network that is based on Ethernet (1000BASE-T)
D/A converter module The abbreviation for the CC-Link IE Field Network digital-analog converter module
GX Works2 The product name of the software package for the MELSEC programmable controllers
REMFR The abbreviation for ZP.REMFR
REMTO The abbreviation for ZP.REMTO
Intelligent device station
A station that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic
transmission. This station responds to a transient transmission request from another station and also
issues a transient transmission request to another station.
Cyclic transmission
A function by which data are periodically exchanged among stations on the same network using link
devices (RX, RY, RWw, and RWr)
Simple motion module The abbreviation for the QD77GF CC-Link IE Field Network simple motion module
Slave station
A generic term for stations other than a master station, such as a local station, remote I/O station,
remote device station, and intelligent device station
Data link Generic term for cyclic transmission and transient transmission
Transient transmission
A function of communication with another station, which is used when requested by a dedicated
instruction or GX Works2
Network module
A generic term for the following modules:
• CC-Link IE Field Network module
• CC-Link IE Controller Network module
• Ethernet interface module
• MELSECNET/H module
• MELSECNET/10 module
Buffer memory
A memory in an intelligent function module, where data (such as setting values and monitoring
values) exchanged with a CPU module are stored
Master/local module A generic term for the CC-Link IE Field Network master/local module
Master station
A station that controls the entire network. This station can perform cyclic transmission and transient
transmission with all stations. Only one master station can be used in a network.
Remote I/O station A station that exchanges I/O signals (bit data) with the master station by cyclic transmission
Remote device station
A station that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic
transmission. This station responds to a transient transmission request from another station.
Remote buffer memory Buffer memory in a remote device station
Remote register (RWr)
Word data input from a slave station to the master station (For some areas in a local station, data are
input in the opposite direction.)
User's manual for the master/local module used
Remote register (RWw)
Word data output from the master station to a slave station (For some areas in a local station, data
are output in the opposite direction.)
User's manual for the master/local module used
Remote output (RY)
Bit data output from the master station to a slave station (For some areas in a local station, data are
output in the opposite direction.)
User's manual for the master/local module used
Remote input (RX)
Bit data input from a slave station to the master station (For some areas in a local station, data are
input in the opposite direction.)
User's manual for the master/local module used
Link device A device (RX, RY, RWr, or RWw) in a module on CC-Link IE Field Network
Link special relay (SB)
Bit data that indicates the operating status and data link status of a module on CC-Link IE Field
Network
Link special register (SW)
Word data that indicates the operating status and data link status of a module on CC-Link IE Field
Network
Local station
A station that performs cyclic transmission and transient transmission with the master station and
other local stations. The station is controlled by programs in the CPU module or other equivalent
modules on the station.
Disconnection A process of stopping data link if a data link error occurs