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
4.2 Field data for transponders, readers and antennas
SIMATIC RF300
System Manual, 07/2016, C79000-G8976-C345-0x
61
1)
The permissible minimum distance between two RF380Rs depends on the transmit power
that is set. The specified minimum distance must be multiplied by the following factor,
depending on the output:
Table 4- 27 Effect on the minimum distance of the transmit power with RF380R
'distance_limiting' byte
Factor
02; 03
0.8
04; 05; 06 1.0
07; 08
1.2
Minimum distance from antenna to antenna
Table 4- 28 Minimum distances antennas
ANT 1
ANT 3
ANT 3S
ANT 8
ANT 12
ANT 18
ANT 30
≥ 100 ≥ 80 ≥ 20 ≥ 50 ≥ 70 ≥ 100 ≥ 100
All values are in mm
You will find detailed information on the minimum distances between antennas the section
"Minimum distance between antennas (Page 200)".
Note
Effect on inductive fields by not maintaining the minimum distances of the readers
If the values fall below the values specified in the "Minimum distance readers" and "Minimum
distances antennas"
tables , there is a risk of the function being affected by inductive fields.
In this case, the data transfer time would increase unpredictably or a command would be
aborted with an error.
Keeping to the values specified in the "Minimum distance readers"
and "Minimum distances
antennas" tables is therefore essential.
If the specified minimum distance cannot be complied with due to the physical configuration,
the SET-ANT command can be used to activate and deactivate the RF field of the reader.
The application software must be used to ensure that only one reader is active (antenna is
switched on) at a time.
Note
Please also observe the graphic representations of the minimum distances in the respective
chapters on readers.