W
9
/>P@9
7DJ
>PV@
t
V
:
Dwell time of the transponder
L:
Length of the transmission window
v
Tag
:
Speed of the transponder in dynamic mode
0.8:
Constant factor used to compensate for temperature influence and production tolerances
The dwell time can be of any duration in static mode. The dwell time must be sufficiently long
to allow communication with the transponder.
The dwell time is defined by the system environment in dynamic mode. The volume of data to
be transferred must be matched to the dwell time or vice versa. As a general rule:
W
9
W
.
ุ
t
V:
:
Dwell time of the data memory in the antenna field of the reader
t
K
:
Communication time between transponder and communication module
4.1.9
Communication between communications module, reader and transponder
Field data collection
The free "TIA Selection Tool" configurator also supports you during field data collection. Using
this tool, among other things, you can calculate the operating distance (Sa), limit distance (Sg)
and transmission window (L).
You can find the TIA Selection Tool using the following link (
Calculating the data transfer times
Calculation examples for data transfer times
You can find the calculation examples for data transfer time, depending on the components
used, on the pages of the Siemens Industry Online Support. You can find the calculation
examples using the following link (
https://support.industry.siemens.com/cs/ww/en/view/
4.2
Field data for transponders, readers and antennas
The following tables show the field data for all SIMATIC RF300 components of transponders and
readers. This makes the correct selection of a transponder and reader particularly easy.
All technical data listed is typical data and is applicable for an ambient room temperature of
between 0 and +50 °C, a supply voltage of between 22 V DC and 27 V DC as well as an
environment free of metal. Tolerances of ±20 % are permitted due to production or
temperature conditions.
Planning the RF300 system
4.2 Field data for transponders, readers and antennas
SIMATIC RF300
System Manual, 02/2021, C79000-G8976-C345-09
49
