Mitsubishi Electric MELSEC-QS Series Safety Application Manual page 172

APPENDICES
APPX
Appendix 2 Calculating Safety Response Time When CC-Link Safety and CC-Link IE Field Network are
- 16
Used
2) Safety refresh monitoring time of CC-Link Safety
This time is required to calculate input transmission time of CC-Link Safety.
The following is the calculation example for CC master (1).
• In synchronous mode
n: CCLS (1)/WDT (1) = 0.2/10
m: (Safety refresh response processing time/(WDT (1)
= 9.6/(10
: CCLS (1) = 0.2
(WDT (1) n)
= (10 1)
50 [ms]
=
• In asynchronous mode
n: CCLS (1)/WDT (1) = 1.2/10
m: (Safety refresh response processing time/(WDT (1)
= 9.6/(10
: CCLS (1) = 1.2
(WDT (1) n)
= (10 1)
= 51.2 52 [ms]
3) Input transmission time of CC-Link Safety
The following is the calculation example of input transmission time of CC-Link
Safety.
• In synchronous mode
(Safety refresh monitoring time of CC master (1)
+ Input response time of CC remote (1)
- (((WDT (1)
= (50 2) +12.2 - (((10
= 72.2 [ms] (Calculation result A-1)
• In asynchronous mode
(Safety refresh monitoring time of CC master (1)
+ Input response time of CC remote (1)
- (((WDT (1)
= (52 2) +12.2 - (((10
= 76.2 [ms] (Calculation result A-2)
1
1) 1
1.5ms 0
3 + ((WDT (1) n) m)
3 + ((10 1) 1) 2 + (10
1
1) 1
1.5ms 0
3 + CCLS (1) + ((WDT (1)
3 + 1.2 + ((10 1) 1)
n) m) 2 + (WDT (1)
1) 1) 2 + (10
n) m) 2 + (WDT (1)
1) 1) 2 + (10
n))
2 + (WDT (1) )
0)
n))
n) m) 2 + (WDT (1)
2 + (10 0)
2)
n) + WDT (1))
1) +10)
2)
n) + WDT (1))
1) + 10)
)