17
High Performance Distance Sensors
7.6. Offset
The function offset serves to change the current measurement value to a certain other value. Here, the
switching thresholds and the analog measurement ranges are changed as well.
The offset can take place optionally via a menu or externally via Pin A3.
Via menu
Designation
Function
Key designation
Apply*
Accepting the value set in “Specification”
as the distance.
T
Z
Upon pressing the button T, the offset value set in the menu option
Specification is accepted as the current distance. Upon pressing the button Z, the
offset function is reset and the real distance is displayed.
Preset*
Teaching the offset value
T
Z
Upon pressing the button T, the current distance is accepted as the specification
offset. Upon pressing the button Z, the offset specification value is set to 0 (the
offset is activated in the menu option Apply)
Change
Changing the offset value that has been set
in steps
By pressing the keys + or – the adjusted specification offset (menu point Preset)
can be changed stepwise upwards or downwards.
*The currently set specification offset is displayed in line 3. The current distance is displayed in line 4.
Via Pin “A3”
Via the multifunctional pin A3, the offset equalization can be applied through an external trigger Sensor
(corresponds to the menu
Offset
à
Apply
à
T)
.
Here,
A3
must be configured by means of the setting Offset
as input (see “7.2. Pin Function” page 12).
In order to apply the Offset equalization, a voltage > 7 V should be applied at the input pin to trigger a positive
flank. Here, the value set in the menu option
Preset
is accepted as the current distance.
