Leuze BPS 348i - Time Behavior and Reading Quality

Functions
Leuze electronic GmbH + Co. KG BPS 348i 28
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:
Parameter Description Range/Values
Speed resolution The parameter defines the resolu-
tion of the speed value. It affects
only the fieldbus output.
1mm/s
10mm/s
100mm/s
or
Free resolution
Averaging The parameter specifies the aver-
aging time of the calculated speed
values in steps.
Steps:
1 to 32ms
4.3 Time behavior
The BPS of the 300iseries operate with a scanning rate of 1000scans per second. A measurement value
is ascertained every 1ms.
The following parameters are relevant for the time behavior of the position and speed measurement:
Parameter Description Range/Values
Integration depth The integration depth affects the
measurement of position and
speed. The integration depth pa-
rameter specifies the number of
sequential measurements that the
BPS uses for position determina-
tion.
The integration results in smooth-
ing of the output measurement
value.
With the BPS300i, an integration
depth of 8 yields a response time
of 8ms.
Factory setting:
8
Error delay time Errors that occur are suppressed
for the configured time.
If no valid position or speed value
can be ascertained in the config-
ured error delay time, the last
valid value is always output.
If the error persists after the error
delay time elapses, the value of
the Position/Speed value in case
of error parameter is then output
(standard).
Factory setting:
50ms
4.4 WebConfig tool
The webConfig configuration tool offers a graphical user interface for the display of process data, configu-
ration and diagnosis of the BPS via a PC; see chapter 9 "Starting up the device – webConfig tool".