Mitsubishi Electric QJ71LP21 Reference Manual page 89

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