Effects Of Metal On Different Transponders And Readers; Impact On The Transmission Window By Metal - Siemens SIMATIC Ident RF340R02 System Manual

Planning the RF300 system
4.3 Installation guidelines
4.3.3

Effects of metal on different transponders and readers

Mounting different transponders and readers on metal or flush-mounting
Certain conditions have to be observed when mounting the transponders and readers on
metal or flush-mounting. For more information, please refer to the descriptions of the
individual transponders and readers in the relevant section.
4.3.4

Impact on the transmission window by metal

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.
70
, S , L) is shown in a table in this section. The
g a
System Manual, 07/2017, C79000-G8976-C345-07
SIMATIC RF300