Rf300 - Siemens SIMATIC RF300 System Manual

RF300 system planning
4.2 Field data for transponders, readers and antennas
Minimum distance from reader to reader
All values are in mm
1)
DILI byte
02; 03
04; 05; 06
07; 08
Minimum distance from antenna to antenna
All values are in mm
See also Minimum distance between antennas (Page 121)
NOTICE
Effect on inductive fields by not maintaining the minimum distances of the readers
When the values specified in the "minimum distance from reader to reader" table are not
met, there is a risk of affecting inductive fields. In this case, the data transfer time would
increase unpredictably or a command would be aborted with an error.
Adherence to the values specified in the "Minimum distance from reader to reader" table 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 HF 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.
48
RF310R to RF310R
≥ 100
The permissible minimum distance between two RF380Rs depends on the transmission output
power that is set. The specified minimum distance must be multiplied by the following factor,
depending on the output:
ANT1
≥ 100
RF340R to RF340R
≥ 100
Factor
0,8
1,0
1,2
ANT18
≥ 100
System Manual, 11/2009 - Zwischenstand 17.09.2009, A5E01642529-04
RF380R to RF380R
1)
≥ 400
ANT30
≥ 100
SIMATIC RF300