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1 FUNCTIONS
1.8 Safety Communication Function
109
1
■
Safety communications flow
• Master station (safety station) and local station (safety station)
The safety device status of the sending station is stored in a safety device of the receiving station.
Safety communications between local stations (safety stations) is also the same.
Output from the master station (safety station)
The safety device of the Safety CPU on the master station (safety station) turns on.
The safety device status of the Safety CPU on the master station (safety station) is stored in the Safety CPU on the local station (safety station) by safety data
transfer.
Output from the local station (safety station)
The safety device of the Safety CPU on the local station (safety station) turns on.
The safety device status of the Safety CPU on the local station (safety station) is stored in the Safety CPU on the master station (safety station) by safety data
transfer.
END
Ò
Ó
Ô
Õ
Master station
(safety station)
Safety CPU
Safety device
Safety device
Sequence
scan
Station No.0
END
Safety CPU
Safety device
Safety device
Sequence
scan
Station No.1
Local station
(safety station)
SA\M0
SA\Y
SA\Y
SA\M0
Summary of Contents for MELSEC iQ-R04ENCPU
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