User's Manual Part 1

Table Of Contents
RF300 system planning
4.1 Fundamentals of application planning
SIMATIC RF300
System Manual, 09/2007, J31069 D0166-U001-A5-7618
23
Table 4-2 RF340R reader transmission window and read/write distance
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All dimensions in mm.
S
a
: Operating distance between transponder and reader
S
g
Limit distance (maximum clear distance between upper surface of the reader and the transponder, at which the
transmission can still function under normal conditions)
L
x
Length of a transmission window in the x direction
The length L
x
is valid for the calculation. At S
a,min
, the field length increases from L
x
to L
max
.
L
y
Length of a transmission window in the y direction
The length L
y
is valid for the calculation. At S
a,min
, the field length increases from L
y
to L
y max
.
M Field centerpoint