Siemens SIMATIC RF600 System Manual page 74

RF600 system planning
4.7 Guidelines for electromagnetic compatibility (EMC)
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 4-9
When RFID modules are used, different components in the overall system can act as a
coupling path:
Table 4- 2
Coupling path
Conductors and cables
Control cabinet or housing
74
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, 10/2009, J31069-D0171-U001-A8-7618
SIMATIC RF600