Siemens SIMATIC Ident System Manual page 27

The figure below shows the transmission window of the SIMATIC RF240R and SIMATIC
RF260R readers between transponder and reader:
S
a
S
g
L
M
Figure 4-2
The transponder can be used as soon as the intersection (SP) of the transponder enters the
area of the transmission window.
SIMATIC RF200
System Manual, 07/2015, J31069-D0227-U001-A9-7618
Operating distance between transponder and reader
Limit distance (maximum clear distance between upper surface of the reader and the tran-
sponder, at which the transmission can still function under normal conditions)
Length of a transmission window
Field centerpoint
RF240R/RF260R transmission window
RF200 system planning
4.1 Fundamentals of application planning
27