Mitsubishi Electric MELSEC QS Series User Manual page 64

5
DATA LINK PROCESSING TIME AND STATION
STATUS AT ERROR OCCURRENCE
5
- 7 5.2 Transmission Delay Time
5.2.1 Safety master station Safety remote I/O station
[Normal value (CC-Link Safety line is unstable.)]
(Safety refresh monitoring time
(((SM n) m) 2 + (SM
*1
• SM :Sequence scan time of safety CPU module
• LS :Link scan time (Refer to Section 5.1)
• n :(LS/SM) value that is rounded up to the nearest whole number
• m :{Safety refresh response processing time
rounded up to the nearest whole number
(Example) When the sequence scan time of the safety CPU module is 10ms,
the link scan time is 1ms, the safety refresh monitoring time is 50ms,
and the safety remote station input response time is 11.2ms:
(Safety refresh monitoring time
response time - (((SM
= (50
= 71.2 [ms]
* 1: For the calculation of SM, refer to the "QSCPU User's Manual (Function Explanation, Program
Fundamentals)".
* 2 For the safety refresh response processing time and the safety remote station input response
time, refer to the manual of the relevant safety remote I/O station.
2) + Safety remote station input response time
n) +SM) [ms]
n)
2) + 11.2 - (((10 1)
*2
/(SM n)} value that is
2) + Safety remote station input
m) 2 + (SM n) +SM) [ms]
1) 2 + (10 1) + 10)
*2
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