Pilz PSSu H PLC1 FS SN SD - Manual (Page 40)

Technical Details
Operating Manual PSSu H PLC1 FS SN SD(­T)(­R)
21939­EN­10 40
9.1 Safety characteristic data
Operating
mode EN ISO
13849­1:
2008
PL
EN ISO
13849­1:
2008
Category
EN IEC
62061
SIL CL
EN IEC
62061
PFH
D
[1/h]
IEC 61511
SIL
IEC 61511
PFD
EN ISO
13849­1:
2008
T
M
[year]
– PL e Cat. 4 SIL CL 3 4,14E­09 SIL 3 3,51E­05 20
If the module is operated at an ambient temperature above 60° C, the values stated in the
table for PFH
D
and PFD will need to be doubled when a safety function is calculated.
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.