RF600 system planning
4.7 Planning and installation of UHF read points
SIMATIC RF600
System Manual, 06/2019, J31069-D0171-U001-A22-7618
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4. In the "RSSI display" area, you can see the current (light blue) and maximum reached
(dark blue) RSSI values.
s
sponder is not identified
f no transponder is identified, first increase the radiated power as described in the
ollowing section. Then repeat the antenna adjustment.
lso check the polarization of your antenna. If the transponder always has the same
lignment, the antenna polarization should be adapted accordingly. If the transponder
oves or the alignment of the transponder varies, it is advisable to combine several
ntenna polarization types or to select a circular polarization.
5. Optimize the antenna adjustment until the maximum possible RSSI value is reached.
6. Secure the antenna.
Note that the RSSI value depends on the following components:
Ⴠ transponder used,
Ⴠ antenna used,
Ⴠ Polarization,
Ⴠ reflecting and absorbent materials in the vicinity of the antenna.
Using the "Settings - Read points" menu item of the WBM, you can set the radiated power.
Select the radiated power so that the required transponders can be identified reliably but
without overreach. In this case, the following applies: "as much as necessary, as little as
possible".
In the "Settings - Activation power" menu item, you can find the optimum radiated power for
reliable transponder access.
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