Siemens SIMATIC RS 485 - Page 31

Technical data
6.1 General technical data
RS 485 Repeater
Manual, 02/2011, A5E03382072-01
31
Sinusoidal disturbance
The table below shows the EMC compatibility of S7-300 modules in areas subject to
sinusoidal disturbance.
● HF radiation
HF radiation according to IEC 61000-4-3
Electromagnetic HF field, amplitude-modulated
Corresponds with
degree of severity
80 MHz to 1,000 MHz; 1.4 GHz to 2 GHz 2.0 GHz to 2.7 GHz
10 V/m 1 V/m
80% AM (1 kHz)
3, 2, 1
● HF coupling
HF coupling according to IEC 61000-4-6 Corresponds with
degree of severity
0.15 MHz to 80 MHz
10 V
rms
unmodulated
80% AM (1 kHz)
150 Ω source impedance
3
Emission of radio interference
Electromagnetic interference according to EN 55016: Limit Value Class A (measured at a
distance of 10 m).
Frequency Noise emission
30 MHz to 230 MHz < 40 dB (µV/m)Q
230 MHz to 1000 MHz < 47 dB (µV/m)Q
Noise emission via AC mains to EN 55016: Limit value class A, Group 1.
Frequency Noise emission
From 0.15 to 0.5 MHz < 79 dB (µV/m)Q
< 66 dB (µV/m)M
0.5 MHz to 5 MHz < 73 dB (µV/m)Q
< 60 dB (µV/m)M
5 MHz to 30 MHz < 73 dB (µV/m)Q
< 60 dB (µV/m)M