Siemens SIMATIC RF600 Series System Manual page 48

RF600 system planning
4.3 Antenna configurations
Table 4- 2 Maximum antenna spacing of the external antennas with a portal configuration
Antenna Antenna alignment
configuration
B Pointing at each other
Portal spacing of up to 10 m is possible. The probability of a read must be checked.
1)
Antenna alignment and antenna spacing with internal antennas (RF685R)
Table 4- 3 Antenna alignment and minimum antenna spacing with internal reader antennas
Antenna Antenna alignment
configuration
A Back to back
B Pointing at each other
E Next to each other
Optimization of the antenna arrangement
With the RF685R reader (with internal antenna)
The RF685R reader has an integrated switchable antenna (circular or linear polarization).
With the RF640A/RF642A/RF660A antennas
The electrical aperture angles (vertical and horizontal) of the RF660A antenna are identical,
with the RF640A/RF642A antennas they are similar. Therefore, the robustness of the
readers' access to transponder data cannot be optimized for the RF660A and with the
RF640A/RF642A it can be optimized only to a limited extent by rotating around the antenna
axis.
48
Maximum distance = D
RF650R/RF680R/RF685R
with RF650A/RF660A/RF680A
8.0 m
Minimum distance required = D
RF685R
0.3 m
2.0 m
0.5 m
System Manual, 10/2016, J31069-D0171-U001-A19-7618
SIMATIC RF600