Functions
Leuze electronic GmbH + Co. KG
BPS 307i
25
4
Functions
This chapter describes the functions of the BPS and the parameters for adaptation to the respective appli-
cation conditions and requirements.
The parameters are set via the webConfig tool (see chapter 9 "Starting up the device – webConfig tool") or
via the Service Data Objects (SDOs) (Object index).
Main functions:
• Position measurement
• Speed measurement
The following parameters are relevant for the time behavior of the position and speed measurement:
• Measurement value preparation
Configurable response time
• Measurement error tolerance
Configurable time-based error suppression
4.1
Position measurement
The output value of the position measurement is calculated from the measurement and the settings for res-
olution, preset, offset, etc.
The most important individual parameters for the position measurement are:
Parameter
Description
Range/Values
Position resolution
The parameter specifies the reso-
lution of the position value. It acts
only on the host interface.
The resolution has no effect on
the set parameter values such as
offset or preset.
0.01 mm
0.1 mm
1 mm
10 mm
or
Free resolution
Unit
The parameter specifies the mea-
surement unit of the measured
position and speed.
The selection of the measurement
unit affects all parameters with
measurement units.
Metric (mm)
or
Inch (1/100 in)
Offset
The offset is used to correct the
position value by a fixed amount.
If the offset is activated, the offset
is added to the position value.
This yields a new output value:
Output value = position value +
offset
1 mm
or
inch/100
Preset
Like the offset, the preset is used
to correct the position value.
With preset, a preset value is
specified. The value is accepted
during a corresponding event
(switching input or fieldbus).
If the preset is activated, this has
priority over the offset.
1 mm
or
inch/100
4.2
Speed measurement
The current speed is ascertained and output on the basis of the respective position values.
The most important individual parameters for the speed measurement are: