RF300 system planning
4.6 EMC Directives
Coupling paths
A coupling path has to be present before the disturbance emitted by the interference source
can affect the system. There are four ways in which interference can be coupled in:
Figure 4-29
When RFID modules are used, different components in the overall system can act as a
coupling path:
Table 4-13
Coupling path
Conductors and cables
Control cabinet or housing
78
Ways in which interference can be coupled in
Causes of coupling paths
Invoked by
Incorrect or inappropriate installation
•
Missing or incorrectly connected shield
•
Inappropriate physical arrangement of cables
•
Missing or incorrectly wired equalizing conductor
•
Missing or incorrect earthing
•
Inappropriate physical arrangement
•
Components not mounted securely
•
Unfavorable cabinet configuration
•
System Manual, 09/2007, J31069 D0166-U001-A5-7618
SIMATIC RF300