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Siemens SIMATIC RF300 System Manual Page 35

Rfid-systems simatic sensors.
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Minimum distance from reader to reader
Refer to the field data of the reader for this value.
Minimum distance from transponder to transponder
Refer to the field data of the transponder for this value.
Calculation of the maximum amount of user data in dynamic mode
Step
1.
Calculate dwell time of the
transponder
2.
Calculate maximum user data (n
for reading or writing
(FRAM area)
Result
A maximum of 168 bytes can be read or written when passing the transponder.
SIMATIC RF300
System Manual, Release 04/2006, J31069 D0166-U001-A2-7618
Formula/calculation
Refer to the "Field data of all transponders and readers" table for value L.
Value V
= 1,00 m/s
TPDR
L 0,8
0,038m 0,8
t
=
=
v
v
TPDR
Take value t
from Step 1.
max)
v
Take values K and t
t
K
v
=
t
Byte
4.1 Fundamentals of application planning
=
=
0,0304s
1,0m/s
from Table "Time constants K and t
Byte
30,4ms 8,5ms
=
168,46
0,13ms
RF300 system planning
30,4ms
".
Byte
n
=
168
Byte
max
4-15

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