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7 CC-Link IE Field Network Basic FUNCTION
7.1 Cyclic Transmission Function
7.1
Cyclic Transmission Function
This function performs periodical data communication between a master station and slave stations using link devices.
Data transition and link device assignment
The following figure shows the data transitions between a master station and slave stations using link devices.
: Area where data is sent to other stations
*1 The slave station order is the same as the order set in the network configuration setting. (
Page 139 Network configuration settings)
• Output from a master station
A device of the master station turns ON.
The device status of the master station is stored to link devices (RY and RWw) of the master station by link refreshes.
The status of link devices (RY and RWw) of the master station is stored to link devices (RY and RWw) of slave stations by
link scans.
The status of the link devices (RY and RWw) of the slave stations is output to an external device.
• Input from slave stations
The status of the external device is stored to the link devices (RX and RWr) of the slave stations.
The status of the link devices (RY and RWw) of the local stations is stored to the link devices (RX and RWr) of the master
station by link scans.
The status of the link devices (RX and RWr) of the mater station is stored to the link devices of the master station by link
refreshes.
The device of the master station turns ON.
(1) Master station
(2) Slave station 1
(3) Slave station 2
(4) Slave station 3
(5) Link scan
RX, RWr
RX, RWr
RX, RWr
RY, RWw
RY, RWw
RY, RWw
RX, RWr
RY, RWw
(1)
(5)
(2)
(2)
(3)
(3)
(4)
(4)
(2)
(3)
(4)
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Summary of Contents for MELSEC iQ-R C R12CCPU-V
Page 1: ...MELSEC iQ R C Controller Module User s Manual Application R12CCPU V ...
Page 2: ......
Page 23: ...1 EXECUTING PROGRAMS 1 3 I O Access Timing 21 1 MEMO ...
Page 32: ...30 3 MEMORY CONFIGURATION OF C Controller Module 3 4 Files MEMO ...
Page 257: ...I 255 MEMO ...
Page 261: ......