Siemens SIMATIC S7-1200 - Page 1364

Technical specifications
A.2 General technical specifications
S7-1200 Programmable controller
1364 System Manual, V4.2, 09/2016, A5E02486680-AK
Table A- 3 Conducted and radiated emissions per EN 61000-6-4
Electromagnetic compatibility - Conducted and radiated emissions per EN 61000-6-4
Conducted Emissions
EN 55016, Class A, Group 1
0.15 MHz to 0.5 MHz
<79dB (μV) quasi-peak; <66 dB (μV) average
0.5 MHz to 5 MHz <73dB (μV) quasi-peak; <60 dB (μV) average
5 MHz to 30 MHz
<73dB (μV) quasi-peak; <60 dB (μV) average
Radiated Emissions
EN 55016, Class A, Group 1
30 MHz to 230 MHz <40dB (μV/m) quasi-peak; measured at 10m
230 MHz to 1 GHz
<47dB (μV/m) quasi-peak; measured at 10m
1 GHz to 3 GHz
< 76dB (uV/m) quasi peak, measured at 10m
Surge immunity
Wiring systems subject to surges from lightning strike coupling must be equipped with
external protection. One specification for evaluation of protection from lightning type surges
is found in EN 61000-4-5, with operational limits established by EN 61000-6-2. S7-1200 DC
CPUs and signal modules require external protection to maintain safe operation when
subject to surge voltages defined by this standard.
Listed below are some devices that support the needed surge immunity protection. These
devices only provide the protection if they are properly installed according to the
manufacturer's recommendations. Devices manufactured by other vendors with the same or
better specifications can also be used:
Table A- 4 Devices that support surge immunity protection
Sub-system
Protection device
+24 V DC power
BLITZDUCTOR VT, BVT AVD 24, Part Number 918 422
Industrial Ethernet
DEHNpatch DPA M CLE RJ45B 48, Part Number 929 121
RS-485
BLITZDUCTOR XT, Basic Unit BXT BAS, Part Number 920 300
BLITZDUCTOR XT, Module BXT ML2 BD HFS 5, Part Number 920 271
RS-232
BLITZDUCTOR XT, Basic Unit BXT BAS, Part Number 920 300
BLITZDUCTOR XT, Module BXT ML2 BE S 12, Part Number 920 222
+24 V DC digital inputs
DEHN, Inc., Type DCO SD2 E 24, Part Number 917 988
+24 V DC digital outputs
and sensor supply
DEHN, Inc., Type DCO SD2 E 24, Part Number 917 988
Analog IO
DEHN, Inc., Type DCO SD2 E 12, Part Number 917 987
Relay outputs
None required