User manual

65
Table 54: CAN bus request message (Set holding data)
Holding
Data Type
(Byte 1)
Holding Data
Description
Argument
Argument Description
0
Acquisition
configuration
Byte 2
Exponent for the number of accumulation
(that is, if the content of this register is n, 2
n
accumulations are performed).
Byte 3
Exponent for the number of oversampling
(that is, if the content of this register is n, 2
n
oversamplings are performed).
Byte 4
Number of base samples
1
Smoothing
and detection
threshold
Byte 2
Smoothing: Stabilizes the module
measurements. The behavior of the
smoothing algorithm can be adjusted by a
value ranging from -16 to 16.
Bytes 4
through 7
Detection threshold as a fixed-point value with
a 6-bit fractional part (that is, threshold value
is this register divided by 64).
2
Light source
power
management
Byte 2
Light source power in percentage of the
maximum. A value above 100 is an error. If a
value is specified that is not one of the
predefined values, the closest predefined
value will be used. The register can be read
back to know the actual value. Note that this
value is ignored if the automatic light source
intensity parameter is enabled.
Byte 3
Number of echoes for saturation acceptance:
the number of echoes can be saturated to
avoid decreasing the light source power when
using the automatic mode.
Bytes 4 and 5
Auto light source power changes the delay in
number of measurements
3
Distance
resolution and
acquisition
options
Bytes 2 and 3
Distance units:
 1 = m
 10 = dm
 100 = cm
 1,000 = mm