1 FUNCTIONS
1.3 Cyclic Transmission
19
1
Master station and local stations
Data can be written into the send range of the link devices (RY, RWw) of each station and can be sent to any station on the
same network. The status data of the link devices (RY, RWw) of the master station are stored in the link devices (RX, RWr) of
each local station. The status data of the link devices (RY, RWw) of local stations are stored in the link devices (RX, RWr) of
the master station and the link devices (RY, RWw) of other local stations.
• Output from the master station
• Input from the local station
The device of the CPU module turns on.
The status data of the device of the CPU module are stored in the link devices (RY, RWw) of the master station by link refresh.
The status data of the link devices (RY, RWw) of the master station are stored in the link devices (RX, RWr) of the local station by link scan.
The status data of the link devices (RX, RWr) of the local station are stored in the devices of the CPU module.
The device of the CPU module turns on.
The device status data of the CPU module are stored in the own station send range of the link devices (RY, RWw).
The status data of the link devices (RY, RWw) of the local station are stored in the link devices (RX, RWr) of the master station by link scan.
The status data of the link devices (RX, RWr) of the master station are stored in the devices of the CPU module by link refresh.
M0
END
END
M0
END
END
Ò
Ó
Ô
Õ
×
Ö
Ù
Ø
Y
Y
RX, RWr
RY, RWw
RX, RWr
RY, RWw
RX, RWr
RY, RWw
RX, RWr
RY, RWw
Inter-module
synchronization
cycle
Inter-module
synchronization
cycle
Local station
Station No.1
Local station
Station No.2
Local station
Station No.3
Station No.0
Area where data is sent to
other stations
Range of the
station No.1
sending data
Range of the
station No.2
sending data
Range of the
station No.3
sending data
Range of the
sending data to
the station No.1
Range of the
sending data to
the station No.2
Range of the
sending data to
the station No.3
Sequence
scan
Sequence
scan
Station
No.1
Station
No.2
Station
No.3
Station
No.1
Station
No.2
Station
No.3
Station
No.2
Station
No.3
Station
No.1
Station
No.2
Station
No.3
Station
No.1
Station
No.3
Station
No.1
Station
No.2
Station
No.1
Station
No.2
Station
No.3
CPU module
CPU module
Device
Device
Device
Device
Link
refresh
Link
refresh
Link
refresh
Link
refresh
Link
scan
Master
station
(Simple
Motion
module)
Summary of Contents for RD77GF16
Page 1: ...MELSEC iQ R Simple Motion Module User s Manual Network RD77GF4 RD77GF8 RD77GF16 RD77GF32 ...
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