Mitsubishi Electric NZ2GF-CCB, User Manual

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12
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
Bridge module The abbreviation for the NZ2GF-CCB CC-Link IE Field Network  CC-Link bridge module
Buffer memory A memory in a bridge module, where data (such as setting values and monitoring values) are stored
CC-Link
A field network system where data processing for control and information can be simultaneously performed at high
speed.
CC-Link dedicated cable The abbreviation for the Ver.1.10-compatible CC-Link dedicated cable
CC-Link IE Field Network A high-speed and large-capacity open field network that is based on Ethernet (1000BASE-T)
CC-Link remote station A generic term for CC-Link remote I/O stations and remote device stations
Cyclic transmission
A function by which data are periodically exchanged among stations on the same network using link devices (RX, RY,
RWw, and RWr)
Data link A generic term for cyclic transmission and transient transmission
Dedicated instruction An instruction that simplifies programming for using functions of intelligent function modules
Device A device (X, Y, M, D, or others) in a CPU module
Disconnection A process of stopping data link if a data link error occurs
Engineering tool A generic term for GX Works2 and GX Works3
GX Works2
The product name of the software package for the MELSEC programmable controllers
GX Works3
Intelligent device station
A station that exchanges I/O signals (bit data) and I/O data (word data) with the master station by cyclic transmission.
This station responds to a transient transmission request from another station.
Link device A device (RX, RY, RWr, or RWw) in a module on CC-Link IE Field Network and CC-Link
Link scan (link scan time)
Time required for all stations in a system to transmit data. The link scan time depends on data volume and the number
of transient transmission requests.
Link special register (SW) Word data that indicates the module operating status and data link status of CC-Link IE Field Network and CC-Link
Link special relay (SB) Bit data that indicates the module operating status and data link status of CC-Link IE Field Network and CC-Link
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.
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.
("Master station" after Chapter 1 in this manual is a CC-Link IE Field Network master station. A master station on CC-
Link is described as "CC-Link master station".)
Master/local module A generic term for CC-Link IE Field Network master/local modules
Relay station
A station that includes two or more network modules. Data are passed through this station to stations on other
networks.
Remote buffer memory Buffer memory in a remote device station
Remote device station
A station that exchanges I/O signals (bit data) and I/O data (word data) with the master station by cyclic transmission.
This station responds to a transient transmission request from another station.
Remote I/O station A station that exchanges I/O signals (bit data) with the master station by cyclic transmission
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
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 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
Reserved station A station reserved for future use. This station is not actually connected, but counted as a connected station
Return A process of restarting data link when a station recovers from an error