PSEN cs4.2a
Operating Manual PSEN cs4.2a
1003575-EN-08
| 40
Safety characteristic data
NOTICE
You must comply with the safety characteristic data in order to achieve the
required safety level for your plant/machine.
Operating
mode
EN ISO
13849-1:
2015
PL
EN ISO
13849-1:
2015
Category
EN 62061
SIL CL
EN 62061
PFH
D
[1/h]
IEC 61511
SIL
IEC 61511
PFD
EN ISO
13849-1:
2015
T
M
[year]
2-ch. OSSD
PL e
Cat. 4
SIL CL 3
2,62E-09
–
7,68E-05
20
Explanatory notes for the safety-related characteristic data:
}
The SIL CL value in accordance with EN 62061 corresponds to the SIL value in accord-
ance with EN 61508.
}
T
M
is the maximum mission time in accordance with EN ISO 13849-1. The value also ap-
plies as the retest interval in accordance with EN 61508-6 and IEC 61511 and as the
proof test interval and mission time in accordance with EN 62061.
All the units used within a safety function must be considered when calculating the safety
characteristic data.
INFORMATION
A safety function's SIL/PL values are
not
identical to the SIL/PL values of
the units that are used and may be different. We recommend that you use
the PAScal software tool to calculate the safety function's SIL/PL values.
