System Manual

Table Of Contents
Planning the RF200 system
4.1 Fundamentals of application planning
SIMATIC RF200
32 System Manual, 03/2019, J31069-D0227-U001-A11-7619
Secondary fields without shielding
The following graphic shows typical primary and secondary fields, if no shielding measures
are taken.
Main field
Secondary field
Figure 4-4 Secondary field without shielding
In this arrangement, the reader can also read tags via the secondary field. Shielding is
required in order to prevent unwanted reading via the secondary field, as shown and
described in the following.