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Planning The Rf300 System; Fundamentals Of Application Planning; Selection Criteria For Simatic Rf300 Components; Transmission Window And Read/write Distance - Siemens SIMATIC Ident System Manual

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Planning the RF300 system

4.1

Fundamentals of application planning

4.1.1

Selection criteria for SIMATIC RF300 components

Assess your application according to the following criteria, in order to choose the right
SIMATIC RF300 components:
● Transmission distance (read/write distance)
● Tracking tolerances
● Static or dynamic data transfer
● Data volume to be transferred
● Speed in case of dynamic transfer
● Metal-free rooms for transponders and readers
● Ambient conditions such as relative humidity, temperature, chemical impacts, etc.
4.1.2

Transmission window and read/write distance

The reader generates an inductive alternating field. The antenna field is largest near to the
reader. The size of the field decreases strongly the further away from the reader. The
distribution of the antenna field depends on the structure and geometry of the antennas in
the reader and transponder.
For the transponder to function correctly, a minimum field strength at the transponder must
be achieved at a distance S
transmission window between transponder and reader or between transponder and antenna:
SIMATIC RF300
System Manual, 07/2016, C79000-G8976-C345-0x
from the reader or the antenna. The figures below show the
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4
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