User's Manual
Table Of Contents
- SIMATIC RF300
- Legal information
- Table of contents
- 1 Introduction
- 2 Safety information
- 3 System overview
- 4 Planning the RF300 system
- 4.1 Fundamentals of application planning
- 4.1.1 Selection criteria for SIMATIC RF300 components
- 4.1.2 Transmission window and read/write distance
- 4.1.3 Width of the transmission window
- 4.1.4 Impact of secondary fields
- 4.1.5 Setup help of the readers of the second generation
- 4.1.6 Permissible directions of motion of the transponder
- 4.1.7 Operation in static and dynamic mode
- 4.1.8 Dwell time of the transponder
- 4.1.9 Communication between communications module, reader and transponder
- 4.2 Field data for transponders, readers and antennas
- 4.3 Installation guidelines
- 4.4 Chemical resistance of the transponders
- 4.5 Guidelines for electromagnetic compatibility (EMC)
- 4.1 Fundamentals of application planning
Planning the RF300 system
4.3 Installation guidelines
SIMATIC RF300
System Manual, 07/2016, C79000-G8976-C345-0x
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Table 4- 30 Flush-mounting of transponders and readers
Representation
Description
Problem:
Flush-mounting of transponders and
readers is possible in principle.
However, the size of the transmis-
sion window is significantly reduced.
The following measures can be
used to counteract the reduction of
the window:
Remedy:
Enlargement of the non-metallic
spacer below the transponder
and/or reader.
The transponder and/or reader are
10 to 20 mm higher than the metal
surround.
(The value x ≥ 100 mm is valid, e.g.
for RF310R. It indicates that, for a
distance x ≥ 100 mm, the reader
can no longer be significantly affect-
ed by metal.)
Remedy:
Increase the distances a, b to metal.
The following rule of thumb can be
used:
•
Increase a, b by a factor of 2 to 3
over the values specified for
metal-free areas
• Increasing a, b has a greater
effect for readers or transpond-
ers with a large limit distance
than for readers or transponders
with a small limit distance.