Chapter 1 Functions; Cyclic Transmission; Communications Using Slave Labels - Mitsubishi Electric RD78G4 User Manual

1
FUNCTIONS
1.1

Cyclic Transmission

This allows data to be periodically exchanged among stations on the same network using slave labels.
• The slave labels can be assigned in "Network Configuration Settings" under "Basic Settings". ( Page 42 "CC-Link IE
TSN Configuration" Window)

Communications using slave labels

This allows I/O data to be exchanged in units of bits and in units of words in the master station and slave station.
Slave labels can be used in the motion control station only.
This function is available for the motion ST program only.
Master station and remote stations
1:1 communications between the master station and each remote station. Remote stations do not communicate with each
other.
No.0
Slave label
No.1
No.2
Slave label
→No.1
→No.2
Õ
Ò
Slave label
No.1
No.2
Slave label
→No.1
→No.2
No.0, No.1, No.2 Station No.0 (master station), Station No.1, Station No.2
No.1, No.2 Send range: to station No.1, Send range: to station No.2
No.1, No.2 Send range: from station No.1, Send range: from station No.2
• Output from the master station
 The status data of the slave labels of the master station is stored in the link devices (RY, RWw) of each remote station by cyclic data transfer processing.
 The status data of the link devices (RY, RWw) of the remote station are output to the external device.
• Input from the remote station
 The status data of the external device is stored in the link devices (RX, RWr) of the remote station.
 The status data of the link devices (RX, RWr) of the remote station is stored in the slave labels of the master station by cyclic data transfer processing.
No.1
RWr
0000H
←No.1
0003H
RWw
0000H
No.1
0003H
No.2
RX
0000H
←No.2
001FH
Ô
RY
0000H
No.2
001FH
RWr
0000H
←No.2
0003H
Ó
RWw
0000H
No.2
0003H
1 FUNCTIONS
17
1.1 Cyclic Transmission
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