Siemens SIMATIC RF650R Configuration Manual page 311

The following application examples illustrate the requirements for specific use cases and
provide suitable solutions:
● RFID gate at the incoming goods / outgoing goods department:
Several transponders are located on different packaging of products on a pallet. These
need to be identified when passing through the RFID gate.
Possible configuration: RF650R with four circular antennas (e.g. RF650A, RF660A
depending on the required radiated power)
● Four read points along the production line:
A product needs to be processed by different machines along the production line. The
information for this is contained on a transponder attached to the product that must be
read out at each machine.
Possible configuration: RF680R with four antennas (e.g. RF620A, RF680A)
● Read point on a production line with a predominantly metallic environment:
A product needs to be processed by different machines along the production line. The
information for this is contained on a transponder attached to the product that must be
read out at each machine.
Possible configuration: RF685R with integrated adaptive antenna
Dynamic identification
Dead spots cannot be excluded. To be able to compensate for dead spots, we recommend
that you give preference to dynamic identification rather than static identification. Dynamic
identification means that the transponders are read while they are moving (e.g. on the
conveyor belt). If static identification is necessary, the antenna field can e virtually
dynamized with the RF685R antenna or RF680A.
Triggering
To read out all right transponder data, you can have the readers perform permanent
write/read actions or have specific write/read actions triggered. For the following reasons, we
recommend that you trigger specific write/read actions:
● The RFID system only performs write/read actions when an object to be identified enters
the antenna field. This reduces the number of process errors and they can be identified
more quickly.
● Due to the fact that the various RFID systems only perform write/read actions when
necessary, this reduces the possibility of antenna fields disrupting each other. This
increases process reliability in plants, particularly when there is a high reader density.
Decoupling third-party RFID systems
If you are using different RFID systems, make sure that no two systems are active at the
same time or operate separately from each other. Ideally there should be no mixed usage.
SIMATIC RF650R/RF680R/RF685R
Configuration Manual, 03/2018, C79000-G8976-C386-06
A.1 Planning and installation of UHF read points
Appendix
311