Festo CPX-F8DE-P Manual page 141

A. Technical appendix
A.1 Technical data
A.1.1 Safety characteristics
Safety characteristics
Safety classification CPX-F8DE-P
– to EN ISO 13849-1
– in accordance with EN 61508
– in accordance with EN 62061
T
WCDT
Worst Case Delay Time
(Max. internal response time
to the input signal)
DC
AVG
Average Diagnostic Coverage
(average diagnostic coverage level)
SFF
Safe Failure Fraction
(proportion of safe failures)
Minimum period of request
PROFIsafe watchdog time
Max. reaction time to a change
in input
1)
Characteristic value for testing the application within 24 hours: Thru PL eCKat 3, SIL 3, SIL CL 3
2)
Characteristic value for testing the application within 24 hours: DC
3)
Characteristic value for testing the application within 24 hours: SFF = 95%
Festo P.BE-CPX-F8DE-P-E N en 1610a English
General technical data of the CPX terminal è CPX system
description P.BE-CPX-SYS...
Function mode
1 2
1)
PL d, Cat. 2
1)
SIL 2
1)
SIL CL 2
[ms] 15 15
2)
[%] 80
3)
[%] 84
 Internal reaction time
[ms] F_WD_Time
[ms] F_WD_Time + T
3 4 5 6
thru PL e, Cat. 4
thru SIL 3
thru SIL CL 3
60 120 15 60
99
99
WCDT
= 94%
AVG
7 8 9 10
120 580 15 15
A-3