Siemens Simatic MP 377 Operating Instructions Manual page 23

Sinusoidal disturbance
The table below shows the EMC properties of the modules with respect to sinusoidal
interference. This requires the HMI device to meet the specifications and directives for
electrical installation.
Sinusoidal interference
HF radiation
(electromagnetic fields)
according to IEC 61000-
4-3
HF interference current
on cables and cable
shielding conforming to
IEC 61000-4-6
Emission of radio interference
Emission from electromagnetic fields according to EN 55011, limit value Class A, Group 1,
measured at a distance of 10 m:
30 to 230 MHz
230 to 1 000 MHz
MP 377 15" Touch daylight readable (WinCC flexible)
Operating Instructions (Compact), 04/2009, A5E02532357-01
Test values
80% amplitude modulation at 1 kHz
•
with 10 V/m in the range of 80 MHz to 1 GHz
with 3 V/m in the range 1.4 GHz to 2 GHz
with 1 V/m the range 2 GHz to 2.7 GHz
10 V/m with 50 % pulse modulation at 900 MHz
•
10 V/m with 50 % pulse modulation at 1.89 GHz
Test voltage 10 V at 80% amplitude modulation of
1 kHz in the range from 9 kHz to 80 MHz
< 40 dB (μV/m) quasi-peak
< 47 dB (μV/m) quasi-peak
Safety instructions and approvals
2.5 Electro-Magnetic Compatibility
Corresponds to
severity
3
3
23