Overview and definition of terms
1.2 Areas in the plant
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
15
In the figures the HMI device and transponder are represented as follows:
● The HMI device as circle
● The transponder as square
HMI device in the
transmitting range of
the transponder
Yes
Yes
No
Transponder in the
receiving range of the
HMI device
Yes
No
Yes
Result
Successful distance
measurement
Distance measurement
not possible
Distance measurement
not possible
The distance measurement is executed in the following manner:
● The HMI device emits signals in the current project.
● The transponder reacts to the signal from the HMI device and transmits its ID to the HMI
device.
● The HMI device evaluates the ID and only measures the distance to the configured
transponders.
See also
Integration and segregation (Page 18)
Planning effective ranges (Page 46)