Laser beta lasermike LS8000-3 - Manual (Page 139)

LaserSpeed 8000-3 Instruction Handbook
RS-232/RS-422 Communication
Part No. 93463 / Drawing No. 0921-01561 Page 139 of 221 Revision A (Sep 2007)
W
Walking Threshold
W<CR>
Read
Response Format:
<N>
W<N><CR>
Set
<N>
is an integer from 0 to 999,999,999 that is the walking velocity value multiplied by 1000.
When valid velocity measurements are made below this value, the velocity output and pulse
output will be forced to zero. When the velocity measurements are above this value, it has
no effect. The LS8000-3 compares the absolute value of the measured velocity to this
threshold. For example, say the W value is set to 1000, and the measurement units are
feet/minute. If the LS8000-3 measures velocities between -1 and +1 feet/minute, it will
output zero for the speed, and will not output pulses. If the velocity exceeds ±1 foot/minute,
the LS8000-3 will output measurements normally.
Setting this value to 0 disables the threshold.
This setting is used to prevent the LS8000-3 from sending velocity measurements and
pulses when the velocity is close to zero. If the product being measured is stopped, but
vibrating, the LS8000-3 will measure small velocities, both positive and negative. This
setting can be used to suppress those measurements.
Note: Changing this setting will cause a reset, will reset the indicated length, and will cause
the pulse outputs to be momentarily interrupted. Do not change this setting during normal
operation.
X
Minimum Final Length
X<CR>
Read
Response Format:
<N>
X<N><CR>
Set
<N>
is an integer from 0 to 999,999,999 that is the minimum final length value multiplied by
1000.
When a final length measurement completes, and the measured length is less than this
value, no final length will be transmitted over the serial port.