Siemens SIMATIC RF600 Series System Manual page 34

RF600 system planning
4.2 Possible system configurations
4.2.1 Scenario for material handling control
This scenario shows a possible solution for monitoring and controlling the infeed of material
to a production line. The objective is to provide the right material at the right time. This can
be particularly useful in plants with frequently changing manufacturing scenarios for ensuring
that incorrect infeed and downtimes are minimized.
Features of the scenario
The conveyor transports different transport containers past the antennas. The RFID
transponder is, however, always applied to the transport containers with the same alignment.
The transponders in this scenario are transponders of the type SIMATIC RF680T.
The conveyor belt has a maximum width of approximately 80 cm in this example. The
transport speed is up to 2 m/s. With this arrangement only a single RFID transponder needs
to be detected each time (single-tag).
In this scenario a SIMATIC RF680R is used as the reader. Optimum reading reliability is
ensured by four external SIMATIC RF660A antennas in a portal arrangement. Where the
distances to, or between, the material containers are extremely short the SIMATIC RF620A
is an good alternative. The SIMATIC°RF680R reader reads the information from the
transponder on the transport containers and transfers it to the SIMATIC S7 controller which
controls the sequence to follow depending on the transponder information.
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System Manual, 10/2016, J31069-D0171-U001-A19-7618
SIMATIC RF600