
11
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
Baton pass A data transmission method by which transmission right (token) is passed around the network.
CC-Link IE TSN Class A group of devices and switching hubs compatible with CC-Link IE TSN, ranked according to the functions and
performance by the CC-Link Partner Association.
For CC-Link IE TSN Class, refer to the CC-Link IE TSN Installation Manual (BAP-C3007ENG-001) published by the CC-
Link Partner Association.
CC-Link IE TSN Protocol version
1.0
This protocol is used to perform communications by using the time sharing method defined by IEEE 802.1AS or IEEE
1588 for time synchronization.
CC-Link IE TSN Protocol version
2.0
This protocol is used to perform communications by using the time sharing method defined by IEEE 802.1AS and time-
managed polling method for time synchronization.
Control CPU A CPU module that controls connected I/O modules and intelligent function modules. In a multiple CPU system, a
control CPU can be set for each module.
Cyclic transmission A function by which data are periodically exchanged among stations on the same network using link devices.
Dedicated instruction An instruction that simplifies programming for using functions of intelligent function modules
Device station Stations other than a master station (such as a local station, a remote station, and an intelligent device station)
Disconnection A process of stopping data link if a data link error occurs
Engineering tool A tool used for setting up programmable controllers, programming, debugging, and maintenance
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 and also issues a transient transmission
request to another station.
Link device A device (such as RX, RY, RWr, or RWw) in a module
Link scan (link scan time) Time required for all the stations on the network to transmit data. The link scan time depends on data volume and the
number of transient transmission requests.
Local station A station that performs cyclic transmission and transient transmission with the master station and other local stations
Master operating station A station that controls the entire system in the network where a master station and a submaster station are connected.
Only one master operating station can be used in a network.
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.
Multicast filter A filter function that selects whether to send cyclic data of multicast mode received by the own station to the subsequent
stations. Setting parameters for this function are not required because the master station automatically sets the
parameters according to the system configuration.
Multicast mode A communication mode used to send cyclic data to multiple stations
Relay station A station in which multiple network modules are mounted on one programmable controller to relay data link to other
stations
Remote buffer memory Buffer memory in a remote station, intelligent device station, and other stations
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 station A station that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic transmission. This
station can perform transient transmission.
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
Routing A process of selecting paths for communication with other networks. There are two types of routing: dynamic routing that
auto-selects the communication paths, and static routing where any communication paths can be set.
SLMP SeamLess Message Protocol.
This protocol is used to access an SLMP-compatible device or a programmable controller connected to an SLMP-
compatible device from an external device.
Submaster operating station A station that monitors the status of a master operating station in the network where a master station and a submaster
station are connected. Only one submaster operating station can be used in a network.
Submaster station A station that serves as a master station to control the entire network if the master station is disconnected. Only one
submaster station can be used in a network.
Transient transmission A function of communication with another station, which is used when requested by a dedicated instruction or the
engineering tool.
Unicast mode A communication mode used to send cyclic data to one station