Mitsubishi Electric MELSEC iQ-R Series User Manual page 184

Timing chart
This section describes a timing chart for each system switching cause.
■Pattern 1
The following figure shows a timing chart for normal value.
Control station
Station No.1
System A
Sequence
Control
scan time
station
(SS)
Station No.1
Data sent from
station No.1 to
another station
System A
System B
Normal station
Station No.2
System B
Normal
station
Station No.2 Sequence
scan time
(SS)
Data sent from
station No.2 to
another station
Receive data
in another
Another
station (from
station
station No.1
or No.2)
APPX
182
Appendix 6 Processing Time
Control station
1 2
0) 1)
Control system
Standby system
Normal station
Control station switching time (C Control station switching time (C
Cyclic transmission delay time
0) 1)
Communication faulty station
Power down
3
2)
Delay time until system switching cause detection
Standby system
Control system
System switching time (T
) )
sw sw
3
2)
Cyclic data holding time (T
)
sw
Sub-control station
Delay time until first output after
system switching (T
jo
4
3) 4)
Cyclic transmission delay time
3)
)
H
)
5
4)