Mitsubishi Electric MELSEC iQ-R04ENCPU, User Manual

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362
APPX
Appendix 7 Processing Time
■
Pattern 1
The following figure shows a timing chart for normal value.
3
1) 2) 0)
1 2
2) 1) 4) 0)
5
4) 3)
3 4
3)
Control system
Control system
Standby system
Standby system
System switching time (T
SW
)
Cyclic transmission delay time Cyclic transmission delay time
System A
Local station
Station No.n
System A
System B
System B
Local station
Station
No.n+1
Another
station
Local station Data link faulty station
Power down
Cyclic data retention time (T
H
)
Delay time until first output after system switching (T
jo
)
Delay time until system switching cause detection
Sequence scan
time (SS)
Data sent from
station No.n to
another station
Sequence scan
time (SS)
Data sent from
station No.n+1 to
another station
Data received
from station
No.n or n+1
Local station
Station No.n