UMAX140610. LIN
– J1939 CAN Protocol Converter with PWM Output. Version 1
Page: 47-81
Name
Default
Value
Range
Units
Description
ECU Address
128
[0…253]
–
J1939 ECU address.
Automatic Baud
Rate Detection
True
{False, True}
–
Set to
False
once ECU is
permanently installed on
the CAN network.
Baud Rate
–
{250, 500, 667, 1000}
kbit/s
Read only parameter.
Current baud rate on the
CAN network.
3.8.1.1 ECU Network Parameters
The user can change the
ECU Instance Number
and
ECU Address
to adjust the unit on the
CAN network.
Changing the
ECU Instance Number
is necessary to accommodate multiple converters on the
same CAN network. The list of available ECU instances is shown in the
ECU Instance Number
Setup
dialog window in EA. The user should select the required ECU instance number and
then press OK or, starting from EA 5.14.103.0, double-click the selected instance number.
The
ECU Address
is automatically adjusted as the result of an address arbitration process on
the J1939 CAN network. It can also be changed by a commanded address message. The user
can also manually change the ECU address using the
ECU Address
configuration parameter.
The user selects the new ECU address from the list of available ECU addresses in the
ECU
Address Setup
dialog window similar to the ECU instance number setup dialog. After the
required ECU address is selected, the user should press OK button or, starting from EA
5.14.103.0, double-click the selected address.
3.8.1.2 CAN Network Parameters
The
Baud Rate
configuration parameter shows the current baud rate on the CAN network.
The
Automatic Baud Rate Detection
parameter defines whether the ECU will try to detect the
CAN baud rate in case of communication errors. The baud rate is detected from the list of
supported CAN baud rates.
To avoid an arbitrary selection of the CAN baud rate by ECUs involved in the automatic baud
rate detection process, it is necessary to disable the automatic baud rate detection in ECUs
that are already permanently installed on the CAN network.
3.8.2 CAN Receive
There are 25
CAN Receive
function blocks available to the user. Each function block
represents one CAN input signal that can be received from the CAN bus. The function block
has one signal output.
Figure 24. CAN
Receive
Function Block
CAN Receive
#1…25
Signal Output
