Impact Of Metal On The Transmission Window - Siemens SIMATIC RF200 System Manual

Planning the RF200 system
4.3 Installation guidelines
4.3.4

Impact of metal on the transmission window

In general, the following points should be considered when mounting RFID components:
● Direct mounting on metal is allowed only in the case of specially approved transponders.
● Flush-mounting of the components in metal reduces the field data; a test is recommended
in critical applications.
● When working inside the transmission window, make sure that no metal rail (or similar
part) intersects the transmission field.
The metal rail would affect the field data.
● With readers with a large antenna surface (e.g. RF340R) for reasons of communication
reliability, when the transponders are flush-mounted in metal, a metal-free space around
the transponders is recommended. This metal-free space should match the size of the
antenna surface.
● The reduction of field data is also based on the minimum distance between the reader
and transponder. The respective recommendations are listed in the following table.
The impact of metal on the field data (S
values in the tables describe field data reduction and show the reduced range as a
percentage. The range relates to use in a non-metallic environment. A value of 100% means
no influence on the range.
Note
Possible reader-transponder combinations
The tables of the following section show the possible reader-transponder combinations.
54
, S , L) is shown in a table in this section. The
g a
System Manual, 07/2017, J31069-D0227-U001-A9-7619
SIMATIC RF200