UMAX0608XX‐1000. Tri‐Axial J1939 CAN Inclinometer. Version 9B
Page: 36-66
All analog signal outputs will be reset to zero voltage or either zero (for 0…20mA, 0…24mA
ranges) or 4mA current (for 4…20 mA range) and then re-initialized on the internal
communication error on any of the output channels. The
Global Error
flag will be kept set until
the normal operation on all signal outputs is restored.
3.8 Global
Parameters
The
Global Parameters
functional block gives the user access to a set of global constants, unit
supply voltage and the microcontroller internal temperature.
Global
Parameters
Global Discrete Constant Signal
Global Continuous Constant Signal
Global Const. Signal = 0.0
Global Const. Signal = 1.0
Supply Voltage
Microcontroller Temperature
Figure 20. Global Parameters Function Block
The function block has one configurable
Global Discrete Constant Signal
output, one
configurable
Global Continuous Constant Signal
output and two continuous pre-set constant
signal outputs:
Global Const. Signal = 0.0
and
Global Const. Signal = 1.0
.
The function block also contains
Supply Voltage
continuous signal output presenting the
inclinometer supply voltage in [V]. Please note, that this voltage is not the voltage on the
inclinometer power supply connector pins. It is an internal voltage measured after the EMI
filter, reverse polarity, and transient protection circuit. It is always less than the actual power
supply voltage by approximately 0.7…0.95 V, except for AX061000 units with analog outputs,
where this voltage drop is less than 0.1…0.2V and therefore can be ignored.
The microcontroller internal temperature is presented on the
Microcontroller Temperature
continuous signal output in [°C].
The
Global Parameters
function block has the following configuration parameters.
Table 13. Global Parameters Function Block Configuration Parameters
Name
Default Value
Range
Units Description
Global Continuous
Constant Signal
0
Any value
–
Output signal value of the
Global
Continuous Constant Signal
Global Discrete
Constant Signal
0
[0… 4294967295
(0xFFFFFFFF)]
–
Output signal value of the
Global
Discrete Constant Signal
3.9 J1939
Network
The
J1939 Network
function block defines the global J1939 CAN network settings. It does not
have signal inputs and outputs.
J1939 Network
Figure 21. J1939 Network Function Block
