Mitsubishi Electric RD77GF8 User Manual page 63

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.
Sequence
scan
SA\M0
Ò
SA\Y
• 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.
Station No.0
Safety CPU
Master station
(safety station)
Safety device
Safety device
Station No.1
Safety CPU
Local station
(safety station)
Safety device
Ó
Safety device
Sequence
scan
Õ
1.6 Safety Communication Function
SA\M0
Ô
SA\Y
1 FUNCTIONS
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