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
4.1 Fundamentals of application planning
SIMATIC RF300
System Manual, 07/2016, C79000-G8976-C345-0x
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Secondary fields with shielding
The following graphic shows typical primary and secondary fields, with metal shielding this
time.
The metal shielding prevents the reader from detecting tags via the secondary field.
①
Main field
②
Secondary field
Figure 4-5 Secondary field with shielding
4.1.5
Setup help of the readers of the second generation
After turning on the reader (connection to the power supply) and the following startup phase,
the reader automatically changes to the "Setup" mode. The antenna (reader internal or
external) is also turned on.
In this status "search for transponders" the reader scans the antenna field for transponders
with all HF protocols (RF300, ISO 15693, ISO 14443). If a transponder is recognized in the
antenna field of the reader only the HF protocol of the recognized transponder type is used
and there is a change in the status to "Show quality". In this status you obtain direct
feedback of the communication with the transponder via the LED. If no transponder is
recognized for a longer period of time, the reader changes back to the "Search for
transponders" status.
When a "RESET" command is received, the reader changes back to the normal operation as
known from the RF300.