Siemens SIMATIC RF640A, Системное руководство

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RF600 system planning
4.2 Possible system configurations
SIMATIC RF600
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System Manual, 11/2018, J31069-D0171-U001-A21-7618
4.2.1 Intralogistics scenario
This scenario describes the transport of material via conveyor systems that are made up of
large numbers of standard elements. They are characterized by long distances, frequent
branches (separators, infeed and outfeed), standardized transport containers and high
movement speeds. The installation space available for identification technology is limited,
and the high number of read points demands a low-cost solution.
Due to the high movement speeds of transport containers in some cases, the limited space
available and the fact that the read points are sometimes located very close together, the
use of the RF600 system with space-saving antennas and a low transmit power can be
recommended.
Features of the scenario
Intralogistics (material flow)
Figure 4-1 Scenario: Intralogistics (material flow)
The conveyor transports the transport containers past the antennas. The transponders
attached to the transport containers are always evenly aligned. The transponders in this
scenario are transponders of the type SIMATIC RF630L. The conveyor belt has a maximum
width of approximately 80 cm in this example. The maximum transport speed is 2 m/s. With
this arrangement, only a single transponder needs to be detected each time (single-tag).
In this scenario, SIMATIC RF680R and RF685R are used as readers. Due to the limited
space available and the low reading distances, the SIMATIC RF615A antennas are used in
this example. As an alternative - with greater available space and to guarantee optimum
read reliability - the SIMATIC RF650A antennas can also be used. Because the readers are
connected in a bus topology, wiring requirements are reduced.
The reader reads the information from the transponders on the transport containers and
forwards it to the SIMATIC S7 controller.