What Does Emc Mean; Rf300 - Siemens SIMATIC RF300 System Manual

The description is intended for "qualified personnel":
● Project engineers and planners who plan system configurations with RFID modules and
● Fitters and service engineers who install the connecting cables in accordance with this
4.7.2

What does EMC mean?

The increasing use of electrical and electronic devices is accompanied by:
● Higher component density
● More switched power electronics
● Increasing switching rates
● Lower power consumption of components due to steeper switching edges
The higher the degree of automation, the greater the risk of interaction between devices.
Electromagnetic compatibility (EMC) is the ability of an electrical or electronic device to
operate satisfactorily in an electromagnetic environment without affecting or interfering with
the environment over and above certain limits.
EMC can be broken down into three different areas:
● Intrinsic immunity to interference:
● Immunity to external interference:
● Degree of interference emission:
All three areas are considered when testing an electrical device.
The RFID modules are tested for conformity with the limit values required by the CE and
RTTE guidelines. Since the RFID modules are merely components of an overall system, and
sources of interference can arise as a result of combining different components, certain
guidelines have to be followed when setting up a plant.
SIMATIC RF300
System Manual, 11/2009 - Zwischenstand 17.09.2009, A5E01642529-04
have to observe the necessary guidelines.
description or who rectify defects in this area in the event of interference.
NOTICE
Failure to observe notices drawn to the reader's attention can result in dangerous
conditions in the plant or the destruction of individual components or the entire plant.
immunity to internal electrical disturbance
immunity to external electromagnetic disturbance
emission of interference and its effect on the electrical environment
RF300 system planning
4.7 EMC Directives
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