CPU label
CPU 1516F-3 PN/DP
CPU 1516F-3 PN/DP
CPU 1516F-3 PN/DP
CPU 1513proF-2 PN
CPU 1516proF-2 PN
S7-1500 F
CPU 1516TF-3 PN/DP
CPU 1517F-3 PN/DP
CPU 1517TF-3 PN/DP
CPU 1518F-4 PN/DP
CPU 1518F-4 PN/DP
ODK
CPU 1518F-4 PN/DP
MFP
CPU 1518HF-4 PN
CPU 1518TF-4 PN/DP
Restrictions on the maximum specified ambient air temperature with reference to the installation altitude
Installation altitude
-1 000 to 2 000 m
2 000 to 3 000 m
3 000 to 4 000 m
4 000 to 5 000 m
The basic value for the application of the derating factor is the maximum permissible ambient temperature in °C for
1)
2 000 m
Note
•
Linear interpolation between altitudes is permissible.
•
The derating factors compensate for the decreasing cooling effect of air at higher altitudes due to lower density.
•
Pay attention to the mounting position of the respective module in the technical data. Based on the IEC 61131-2:2017
standard.
•
Ensure that the power supply units used are also adequate for altitudes > 2 000 m.
•
The displays of the S7-1500 CPUs are designed for an altitude of ≤ 3 000 m. If used at > 3 000 m, in rare cases, there can
be problems in the representation of the CPU display; however, these do not have an effect on the functional safety of the
F-CPU.
•
The "Safety-oriented tripping of standard modules" function, as described on the SIEMENS Industry Online Support
(https://support.industry.siemens.com/cs/ww/en/view/39198632) pages, is only approved up to max. 2 000 m.
Effects on the availability
The higher cosmic radiation present during operation at altitudes above 2 000 m will also start to have an effect on the
failure rate of electronic components (the so-called soft error rate). In rare cases, this can result in a transition of the F-CPU
into the safe state. However, the functional safety of the F-CPU is fully retained.
16
Article number
6ES7516-3FN01-0AB0
6ES7516-3FN02-0AB0
6ES7516-3FP03-0AB0
6ES7513-2GL00-0AB0
6ES7516-2GN00-0AB0
6ES7516-3UN00-0AB0
6ES7517-3FP00-0AB0
6ES7517-3UP00-0AB0
6ES7518-4FP00-0AB0
6ES7518-4FP00-3AB0
6ES7518-4FX00-1AB0
6ES7518-4JP00-0AB0
6ES7518-4UP00-0AB0
Ambient temperature
0 to +60
FS 01
-25 to +60
FS 01
-30 to +60
FS 01
-25 to +55
FS 01
-25 to +55
FS 01
0 to +60
FS 05
0 to +60
FS 01
0 to +60
FS 04
0 to +60
FS 01
0 to +60
FS 04
0 to +60
FS 01
0 to +60
FS 01
0 to +60
FS 10
Derating factor for ambient air temperature
1.0
0.9
0.8
0.7
Installation altitude
5 000
FS03 or
higher
5 000
FS01 or
higher
5 000
FS01 or
higher
5 000
FS01 or
higher
5 000
FS02 or
higher
5 000
FS05 or
higher
5 000
FS05 or
higher
5 000
FS05 or
higher
5 000
FS05 or
higher
5 000
FS05 or
higher
5 000
FS01 or
higher
5 000
FS01 or
higher
5 000
FS10 or
higher
1)
F-CPUs
A5E35635424-AM, 11/2022