17
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
Actual position A position address returned by a device station assigned to an axis that is rounded by the ring counter. It is affected by a
current position change.
Axis A target to carry out the motion control
Buffer memory Memory in an intelligent function module to store data such as setting values and monitor values.
Buffer mode A generic term for multiple start
CC-Link IE TSN Class*1 A group of devices and switching hubs compatible with CC-Link IE TSN, classified according to the functions and
performance by the CC-Link Partner Association.
For the 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.
Supporting this protocol version mitigates restrictions when "Mixture of CC-Link IE TSN Class B/A or CC-Link IE TSN
Class A Only" is set in the system configuration, and increases the number of connectable devices.
Continuous update Continuously reflecting input values to the control while the ContinuousUpdate input of the motion control FB is TRUE
Cumulative current position A command position address that is not rounded by a ring counter. It is affected by a current position change.
Cyclic transmission A function by which data is periodically exchanged among stations on the network
Dedicated instruction An instruction for using functions of the module
Device A memory of a CPU module to store data. Devices such as X, Y, M, D, and others are provided depending on the
intended use.
Disconnection A process of stopping data link if a data link error occurs
Execute Set TRUE to the Execute input or the Enable input to the motion control FB
Feed machine position A command position address that is not rounded by the ring counter. It is based on the home position, and it is not
affected by a current position change.
General-purpose hub A CC-Link IE TSN Class A switching hub authorized by CC-Link Partner Association
• When using PLCopen motion control mode
Page 85 Switching hub
• When using Simple Motion mode
Page 153 Switching hub
GX Works3 The product name of the software package for the MELSEC programmable controllers
Hardware reboot Turning ON the power of the system again or resetting
Input variable An FB input argument
Intelligent function module A module that has functions other than input and output, such as an A/D converter module and D/A converter module
Jerk Chronological change ratio of acceleration or deceleration
Label Variables used in a program
Link device A device (RX, RY, RWr, or RWw) in a module on CC-Link IE TSN
Link refresh Processing of data transfer between link devices of the Motion module and CPU module devices.
Link refresh is performed in "END processing" of the sequence scan of the CPU module.
Local station A station that performs cyclic transmission and transient transmission with the master station and other local stations
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.
Module label A label that represents one of memory areas (I/O signals and buffer memory areas) specific to each module in a given
character string. GX Works3 automatically generates this label, which can be used as a global label.
Motion area A software that performs the motion control in the Motion module
Motion control FB An FB that is related to the motion control. Its name starts with MC_ or MCv_.
Motion FB A motion control FB that takes an axis or an axes group for the argument and changes the axis status or the axes status
by execution
Motion control station A device station that exchanges cyclic data by using slave labels through motion control
Motion module Another term for the RD78G(H)
MR-J5-G MR-J5-_G_(-RJ) servo amplifier
MR-J5D-G MR-J5D_-_G_ servo amplifier
MR-J5W-G MR-J5W_-_G servo amplifier
Multiple start Executing another motion control FB to the same axis while a motion control FB is executed