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Siemens SIMATIC RF 300 System Manual Page 27

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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
3.
Calculate maximum user data (n
for writing
(FRAM area)
Result
A maximum of 12 words can be read or written when passing the transponder.
RF 300
System Manual, 05/2005, (4)J31069 D0166-U001-A1-7618, --
Formula/calculation
Refer to the "Field data of all transponders and readers" table for value L.
Value V
= 0.14m/s
TPDR
0,8
0, 04
L
=
=
t
v
0,14 /
v
TPDR
Take value t
from Step 1.
max)
v
Take values K and t
t
K
v
t
Wort
Take value t
from Step 1.
max)
v
Take values K and t
t
K
v
t
Wort
4.1 Fundamentals of application planning
0,8
m
=
0, 228
=
228
s
m s
from Table "Time constants K and t
Word
228
9
ms
ms
=
=
12,17
18
ms
from Table "Time constants K and t
Word
228
9
ms
ms
=
=
12,17
18
ms
RF 300 system planning
ms
".
Word
=
12
n
Words
max
".
Word
=
12
n
Worte
max
4-11

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