Siemens SIMATIC RF600 Series System Manual page 296

Transponder
7.1 Overview
Transponder alignment not allowed for all antenna types
If the angle is changed within the y-z plane, this causes a reduction in range for all antenna
types.
①
②
Figure 7-5
Note
Exceptions
The transponder alignment not allowed does not apply to the transponders RF625T and
RF630T. You will find additional information on this in the sections dealing with the
transponders.
7.1.5.2 Effects of the materials of the mounting surfaces on the range
Effects due to antenna mounting
For the RF640A, RF642A, RF650A, RF660A and RF680A antennas, the antenna gain and
therefore the maximum read/write range does not depend on the selected material of the
mounting surface. In contrast to this, the antenna gain of the RF620A antenna and therefore
the maximum read/write range of transponders does depend on the mounting surface of the
antenna. To achieve the maximum range with an RF620A antenna, the antenna needs to be
mounted on a metallic surface of at least 150 x 150 mm.
You will find more detailed information on antenna gain in the subsections of the section
"Antenna patterns (Page 186)".
296
Antenna RF620A, RF640A, RF642A or RF650A or RF680A
Transponder
Transponder alignment not allowed
System Manual, 10/2016, J31069-D0171-U001-A19-7618
SIMATIC RF600