Planning application
3.6 Effective ranges and zones
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01
61
See also
3.6.2
Distance measurement between HMI device and transponder
The transmitting range of the transponder and the receiving area of the HMI device
approximate to a lobe shape with a range of approximately 8 m. More information can be
found in chapter Radiation characteristic (Page 314) .
Distance measurement between the HMI device and the transponder is only possible if both
devices are within the other's receiving area. The table below shows when distance
measurement is feasible. In the figures, the HMI device is shown as a circle and the
transponder as a square.
HMI device in
transponder's
transmitting range
Yes
Yes
No
Transponder in HMI
device's receiving area
Yes
No
Yes
Result
Distance measurement
successful
Distance measurement
not possible
Distance measurement
not possible