Transponder
7.8 SIMATIC RF625T
SIMATIC RF600
408
System Manual, 06/2019, J31069-D0171-U001-A22-7618
7.8.3.2
Range when mounted on flat metallic carrier plates
The transponder generally has linear polarization. The polarization axis runs as shown in the
diagram below. When using a circular antenna and when the transponder is centrally
mounted on a plane metal plate, which may either be almost square or circular, it can be
aligned in any direction. When using a linear antenna, the polarization axes of antenna and
transponder must always be aligned in parallel.
Figure 7-20 Optimum positioning of the transponder on a (square or circular) metal surface
Table 7- 27 Range on flat metallic carriers
Carrier material
Range
Metal plate of at least Ø 150 mm
100%
Metal plate Ø 120 mm
approx. 70%
Metal plate Ø 85 mm
approx. 60%
Metal plate Ø 65 mm
approx. 60%
On rectangular carrier plates, the range depends on the mounting orientation of the
transponder.
You will find more information on the range in the section "Minimum distances and maximum