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EMC testing
Because of this, before RFID devices are released to the market (CE Declaration of Conformity),
they are subjected to EMC testing to determine their reliability in terms of immunity to ESD. The
tests for this are defined in the international standard, IEC 61000-4-2. The RFID devices are
tested for up to 4 KV via contact discharge (via enclosure, connector) and for up to 8 kV via air
discharge (metal carrier next to and above the reader).
4.6.7.3
Installation example
Installation example promoting electrostatic charge
The following installation example from the conveyor system technology shows a classic
application that generates electrostatic charge and thus leads to electrostatic discharges.
Generation of the electrostatic charge
A pallet or its underside is made of plastic
①
- a material that promotes electrostatic charging.
Figure 4-16
Pallet/workpiece carrier with an underside made of plastic.
This pallet is transported via a roller conveyor with metal rollers, in which the rollers permanently
rotate. The friction between the pallet and the rollers generates electrostatic charges. The higher
the friction, the faster the electrostatic charge increases. High frictional forces act to increase the
electrostatic charge especially when the pallet stops
②
.
Planning the RF300 system
4.6 Guidelines for electromagnetic compatibility (EMC)
SIMATIC RF300
120
System Manual, 02/2021, C79000-G8976-C345-09
Содержание SIMATIC RF300
Страница 14: ...Table of contents SIMATIC RF300 14 System Manual 02 2021 C79000 G8976 C345 09 ...
Страница 18: ...Introduction 1 1 Preface SIMATIC RF300 18 System Manual 02 2021 C79000 G8976 C345 09 ...
Страница 22: ...Safety information 2 1 Security information SIMATIC RF300 22 System Manual 02 2021 C79000 G8976 C345 09 ...
Страница 208: ...Readers 5 6 SIMATIC RF382R with Scanmode 1st generation SIMATIC RF300 208 System Manual 02 2021 C79000 G8976 C345 09 ...
Страница 258: ...Antennas 6 10 ANT 30 stainless steel variant SIMATIC RF300 258 System Manual 02 2021 C79000 G8976 C345 09 ...
Страница 474: ...Service Support SIMATIC RF300 474 System Manual 02 2021 C79000 G8976 C345 09 ...