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MELSEC-Q
3 SPECIFICATIONS
(b) CPU system switching time > Switching time from the multiplexed remote
master station to the multiplexed remote sub-master station
Standby system control system CPU
Output holding time of remote I/O station
A power down has occurred on the control system
SS
Tsw
Toh
Control system standby system CPU
[Output holding time (Toh)]
Toh = Tsw + (SS 2) [ms]
Tsw: Redundant CPU system switching time [ms]
SS: Scanning time of the redundant CPU [ms]
POINT
For the CPU system switching time, refer to QnPRHCPU User's Manual
(Redundant System).