Leuze electronic BPS 8 Original Operating Instructions page 79

Measurement error tolerance parameter
Parameter
k
Tolerance
time in [ms]
l
Delayed
output of
position
error
m
Delayed
output of
error status
The measurement error tolerance function is used to configure a time which results in an
extended output of the last position value in the event of an error. If the position value
changes momentarily to zero, e.g. due to a brief interruption of the scanning beam, soiling
of the bar code tape or other short-term disturbances, the BPS 8 transmits the last valid posi-
tion value.
If the error disappears within the configured time, the control notices nothing. The availability
of the system is thereby ensured. No new values are delivered by the BPS 8, however, for
a period of time extending up to the configured tolerance time. With the Delay error output
parameter, an integration error (corresponds to a missing position value) can be signaled
immediately or after the tolerance time has elapsed. If the error persists after the tolerance
time has elapsed, the last valid position value is output.
Position value in the case of failure parameter
Parameter
n
Position
value in the
case of fail-
ure
Leuze electronic
Description
Specifies the time for the
display of the last position
value following an error.
Delays the output of an
error by the configured toler-
ance time.
Delays the output of an
error in the status byte of
the binary protocol by the
configured tolerance time.
Description
In the case of failure, retain the
last position value or output
zero.
Configuration / device parameters
Value range
0 ... 65,535
0: No, error delay deacti-
vated
1: Yes, error delay acti-
vated
0: No, error delay deacti-
vated
1: Yes, error delay acti-
vated
Value range
0: Zero
1: Last valid
position value
BPS 8
Default Unit
50 ms
1 –
1 –
Default Unit
1 –
CR
–
–
–
CR
–
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