UMAX0608XX‐1000. Tri‐Axial J1939 CAN Inclinometer. Version 9B
Page: 27-66
3.1.4 Signal Type Conversion
Discrete
and
Continuous
signals are automatically converted into each other when a signal
input of one signal type is connected to a signal output of a different signal type.
3.1.4.1 Discrete to Continuous Conversion
A
Discrete
signal is converted into a positive
Continuous
signal of the same value.
3.1.4.2 Continuous to Discrete Conversion
A positive
Continuous
signal is converted into the same value
Discrete
signal. A fractional part
of the
Continuous
signal is truncated. If the
Continuous
signal value is above the maximum
Discrete
signal value, the resulted
Discrete
signal value will saturate to the maximum
Discrete
signal value:
0xFFFFFFFF
.
All negative
Continuous
signals are converted into zero value
Discrete
signals.
3.1.4.3 Undefined Signal Conversion
An
Undefined
signal is not converted into a specific discrete or continuous signal value. It
presents a no-signal condition on both:
Discrete
and
Continuous
signal inputs and outputs.
The value of an undefined signal is not defined unless a default signal value configuration
parameter is used in a function block. In this case, the configuration parameter value is used
as a signal value when the signal is not defined, see
Binary Function
blocks.
3.2 Accelerometer
The
Accelerometer
function block presents the 3D accelerometer sensor.
Accelerometer
X‐Axis Acceleration
Y‐Axis Acceleration
Z‐Axis Acceleration
Accelerometer Sensor Temperature
Figure 11. Accelerometer Function Block
The
Accelerometer
function block has four continuous signal outputs. The unit accelerations:
X-Axis Acceleration, Y-Axis Acceleration, Z-Axis Acceleration
are presented in gravity units [g]
in the machine frame, which is coincident with the unit frame by default when the initial pitch
and roll angles are zero in the
Unit Installation
function block.
The
Accelerometer Sensor Temperature
output presents the sensor temperature in [°C].
In case the inclinometer is used in a high-vibration environment that saturates the acceleration
sensor, the sensor can be switched to a higher measurement range to avoid saturation. This
feature is available only in inclinometers with a high-performance sensor: AX060830,
AX061000, AX060838, AX060810, AX060811.
Keeping the sensor at a higher than default measurement range will increase the sensor
output noise and therefore is not recommended in normal conditions.
