Technical Appendix; Technical Data - Festo CPX Series Description

A. Technical appendix
A.1

Technical data

A.1.1 Safety characteristics
Safety characteristics
Safety classification CPX-F8DE-P
– in accordance with EN ISO 13849-1
– in accordance with EN 61508
– in accordance with EN 62061
T
WCDT
Worst Case Delay Time
(Max. internal reaction time to
input signal)
DC
AVG
Average Diagnostic Coverage
(Average diagnostic coverage)
SFF
Safe Failure Fraction
(safe failure fraction)
Minimum period of request
PROFIsafe Watchdog Time
Max. reaction time to input
change
1) Characteristic value if the application is tested within 24 hours: to PL e Cat. 3, SIL 3, SIL CL 3
1) Characteristic value if the application is tested within 24 h: DC
3) Characteristic value if the application is tested within 24 h: SFF = 95 %
Festo CPX-F8DE-P-EN en 2005b English
General technical data 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
to PL e, Cat. 4
up to SIL 3
up to SIL CL 3
60 120 15 60
99
99
WCDT
= 94 %
AVG
7 8 9 10
120 580 15 15
A-3