6-4
ET 200L Distributed I/O Device
EWA-4NEB 780600902-05
6.2 Electromagnetic Compatibility
Electromagnetic compatibility is the ability of an electric device to function
satisfactorily in its electromagnetic environment without interfering with this
environment.
The ET 200L distributed I/O device also meets the requirements, among oth-
ers, of the EMC act of the European inner market. A requirement for this is
that the ET 200L distributed I/O device meets the specifications and direc-
tives concerning electrical installation.
The following table shows the electromagnetic compatibility of the ET 200L
distributed I/O device with regard to pulse-shaped interference.
Pulse-Shaped Interference Tested with Corresponds to
Severity
Electrostatic discharge
to IEC 801-2 (DIN VDE 0843, Part 2)
8 kV
4 kV
3 (air discharge)
2 (contact dis-
charge)
Burst impulses in accordance with
IEC 801-4 (DIN VDE 0843, Part 4)
2 kV (supply line)
2 kV (signal line)
3
Surge in accordance with IEC 801-5 (DIN VDE 0839, Part 10)
Only with lightning protection elements (refer to DP master
manual).
S Assymmetrical connection 2 kV (supply line)
2 kV (signal line/data
line)
3
S Symmetrical connection 1 kV (supply line)
1 kV (signal line/data
line)
Definition
Pulse-Shaped In-
terference
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