VLM60 User Manual
Parameterization
page 12
ASTECH GmbH
4.2
Parameter
The following overview contains all parameters available in the VLM60. The first line describes the parameter in
each case. The second line shows the syntax, the permitted value range and the default setting (ex works). In the
third line, if necessary, remarks to the respective parameter are noted.
The following characters will be used:
n
integer
s
string
f
floating point number
[ ]
optional
c
character
The following abbreviation will be used for measured variable:
V
velocity
R
measuring rate
L
length
Average
Serves to set the averaging time for the velocity calculation. The internal calculation of the length is
independent of the set averaging time! In the time defined by
Average
, all accruing signals are condensed to
an average value.
av
erage [n]
n = 1.0 ... 10000 (unit: ms)
default: 30
The value should be selected as large as the process dynamics allow. Usual values are 5 to 50 ms. A value that
is too large leads to a delayed reaction to velocity changes. If
Average
is too small, the measured velocity value
fluctuates more strongly. As a result, vibrations from the measuring object or the measuring device, for
example, are visible in the signal curve.
Baudrate
Serves to set the transmission speed (baud rate) between the VLM60 and the connected PC.
baud
rate [n]
n: 9600; 19200; 38400; 57600; 115200
default: 115200
The parameterized baud rate must match the setting of the terminal program (or the VLMTool) so that
parameterization of the VLM is possible.
Calfactor
Serves to set the calibration factor and the correction factor respectively.
cal
factor [f]
f = ±0.750000 ... ±1.250000
default: 1.000000
If the calibration factor is entered with a negative sign, the sign is reversed when the velocity and length are
output. The use of the
Calfactor
for scaling of an output channel is not allowed, for this the PO1Factor and
PO2Factor commands are used.
