Siemens SIMATIC ET 200AL - Page 91

Technical specifications
10.2 Electromagnetic compatibility
Distributed I/O system
System Manual, 02/2018, A5E31861578-AF
89
Sinusoidal disturbance variables
The following tables show the electromagnetic compatibility of the distributed I/O systems to
sinusoidal disturbance variables.
Table 10- 2 RF radiation
RF radiation according to IEC 61000-4-3
Electromagnetic RF field, amplitude modulated
Corresponds to de-
gree of severity
80 to 1000 MHz
10 V/m
3
1.4 to 2 GHz 3 V/m 2
2 to 2.7 GHz
1 V/m
1
80% AM (1 kHz)
Table 10- 3 RF coupling (signal and supply cables)
RF coupling according to IEC 61000-4-6.
Corresponds to de-
gree of severity
0.15 to 80 MHz
3
10 V
rms
unmodulated
80% AM (1 kHz)
150 Ω source impedance
Emission of radio frequency interference
The following table shows the interference emission of electromagnetic fields according to
55016: Limit value class A, group 1 (measured at 10 m distance).
Table 10- 4 Interference emission of electromagnetic fields
Frequency
Interference emission
30 MHz to 230 MHz
<40 dB (µV/m) Q
230 MHz to 1000 MHz
<47 dB (µV/m) Q
1 GHz to 3 GHz
<66 dB (µV/m) P
3 GHz to 6 GHz
<70 dB (µV/m) P
24 V supply connection
The following table shows measurement ranges for low voltage according to EN 55016.
Table 10- 5 Interference emission of electromagnetic fields
Frequency
Interference emission
0.15 MHz to 0.5 MHz 79 dB (µV) Q
66 dB (µV) M
0.5 MHz to 30 MHz 73 dB (µV) Q
60 dB (µV) M