1.4
Specified standards
EN ISO 13850:2015
EN ISO 10218:2011
EN 60204-1:2006+A1:2009+AC:2010
EN 60947-5-8:2007
EN 61131-2:2007
Tab. 2 Specified standards
1.4.1
Quantitative safety specifications for the emergency stop device and the 3-position
enabling switch
Festo provides a B
10D
value
è
13.2 Handheld terminal CDSA-D3-RV.
Other values are not provided by Festo, e.g. SIL, PL and category. Reason: Festo supplies the switch-
ing element, but does not evaluate the element. The customer must connect and monitor the emer-
gency stop device and the 3-position enabling switch for the application. The customer receives SIL or
category with PL by the method in which the emergency stop function and the enabling control func-
tion are implemented in the machine.
1.4.2
Relationship between Performance Level and Safety Integrity Level
Performance Level (PL) in accordance with
EN ISO 13849-1
Safety Integrity Level (SIL) in accordance with
IEC 61508-1
a
no equivalent
b
1
c
1
d
2
e
3
Tab. 3 Relationship between the performance level (PL) and the safety integrity level (SIL) (in accord-
ance with EN ISO 13849-1:2015)
Performance Level (PL)
Average probability of dangerous failure per
hour
a
³
10
-5
to
<
10
-4
b
³
3 x 10
-6
to
<
10
-5
c
³
10
-6
to
<
3 x 10
-6
d
³
10
-7
to
<
10
-6
e
³
10
-8
to
<
10
-7
Tab. 4 Performance Level (PL) (in accordance with EN ISO 13849-1:2015)
About this document
7
Festo — CDSA-D3-RV — 2020-08
