Mitsubishi Electric MELSEC iQ-R04ENCPU, User Manual

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370
APPX
Appendix 7 Processing Time
■
Pattern 5
3 1 2
4)
1) 5)
5)
4) 0)
4 6 5
1) 0) 2)
Control system
Control system
Standby system
Standby system
System switching time (T
SW
)
Cyclic transmission delay time Cyclic transmission delay time
Line switching time (L
SW
)
Control system master operation Standby system master operation
Cyclic data retention time (T
H
)
Error
System switching
request is issued.
System switching
monitoring time
(T
C
)
Sequence scan
time (SS)
System A
Master
station
Station No.0
Slave
station
Data sent from
system A
master station to
another station
System A
System B
System B
Master station
Station No.0
Sequence scan
time (SS)
System B
Master
station
Station No.0
Data sent from
system B master
station to
another station
Data received
from system A
master station or
system B master
station
Another
station
Communication
status
System A
Master
station
Station No.0
Normal
communications
Control system master operation Standby system master operation
Error of slave
station is detected.
Data link error
Delay time until first output after system switching (T
jo
)