Siemens Simatic RF300 System Manual page 139

5.3.5 Ensuring reliable data exchange
The "center point" of the transponder must be situated within the transmission window.
5.3.6 Metal-free area
The RF310R can be flush-mounted in metal. Allow for a possible reduction in the field data.
To avoid any influence on the field data, the distance "a" should be kept to.
a ≥
Figure 5-9
SIMATIC RF300
System Manual, 07/2017, C79000-G8976-C345-07
20 mm
Metal-free area for RF310R
5.3 SIMATIC RF310R - 2nd generation
Readers
139