System Switching Time - Mitsubishi Electric MELSEC iQ-R Series User Manual

System switching time

The calculation formula for the system switching time of the remote head module is as follows:
Line Type System
switching
method
Single Line Automatic system
switching
Manual system
switching
Redundant Automatic system
Line switching
*1 The meanings of the variables in the equation are as follows.
Variable Meaning
H System switching time of the remote head module [ms]
SW
LS Link scan time [ms] ( MELSEC iQ-R CC-Link IE Field Network User's Manual (Application))
T Setting value [ms] of system switching monitoring time set in the master station ( MELSEC iQ-R CC-Link IE Field Network User's Manual
C
(Application))
For the cyclic data hold time at system switching, refer to the following.
 MELSEC iQ-R CC-Link IE Field Network User's Manual (Application)
APPX
166
Appendix 6 Processing Time
System switching cause
Reset or hardware failure
Moderate error or major error
Data link error
System switching operation using the
engineering tool
Tracking of system switching of redundant
master station system
Calculation formula
= 15.5 + (2  LS)
H
SW
= 13 + (3  LS)
H
SW
+ (3  LS)
H = 2106 + T
SW C
= 13 + (3  LS)
H
SW
= 13 + (3  LS)
H
SW
*1