Table of Contents
Advertisement
8.1.1
Data flow and link device assignment
(1) Master and slave stations (except for local stations)
One-to-one communication is possible between the master and slave stations.
The status information of the link devices (RY and RWw) of the master station is output to the external device of
the slave station, and the input status information from the external device of the slave station is stored in the link
devices (RX and RWr) of the master station.
CPU
module
Device
7
Sequence
scan
Link refresh
Device
2
Sequence
scan
Link refresh
M0
1
Y
• Output from the master station
The device of the CPU module turns on.
1
The device status data of the CPU module are stored in the link devices (RY and RWw) of the master
2
station by link refresh.
The status data of the link devices (RY and RWw) of the master station are stored in the link devices
3
(RY and RWw) of each slave station by link scan.
The status data of the link devices (RY and RWw) of the slave station are output to the external
4
device.
• Input from the slave station
The status data of the external device are stored in the link devices (RX and RWr) of the slave station.
5
The status data of the link devices (RX and RWr) of the slave station are stored in the link devices
6
(RX and RWr) of the master station by link scan.
The status data of the link devices (RX and RWr) of the master station are stored in the devices of the
7
CPU module by link refresh.
124
Station No.0
Master
station
RX, RWr
Station
6
No.1
Station
6
No.2
Station
6
No.3
Link
scan
RY, RWw
Station
3
No.1
Station
3
No.2
Station
3
No.3
Station No.1
Station No.2
Slave station
Slave station
RX, RWr
Station No.1
RX, RWr
Station No.2
RY, RWw
Station No.1
RY, RWw
Station No.2
Area where data is sent to
other stations
Station No.3
Slave station
5
RX, RWr
External device
Station No.3
4
External device
RY, RWw
Station No.3
Advertisement
Table of Contents
Troubleshooting
