UMAX180800, 20 Thermocouple, 2 RTD, 4 Inputs, 6 Relays Dual CAN Controller
Version 1
Page: 41-71
4
CONTROLLER CONFIGURATION
The controller can be configured in two independent ways: through the Modbus or CAN
interface.
4.1 Modbus Configuration
The controller can be configured through the Modbus TCP interface using any third-party
software tools.
The configuration parameters are grouped by the function blocks, see the
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section.
The controller checks configuration parameters for validity before accepting them and writing in
a non-volatile memory. If a configuration parameter is invalid, the Modbus writing function will
succeed, but the configuration parameter will not be written.
The controller will reset all relevant function blocks after each change of the configuration
parameters. The exception is the
Ethernet
function block that maintains the Ethernet
connection. The user will need to perform a manual reset by cycling the controller power to
start using the new Ethernet settings.
Any changes in CAN function blocks through Modbus will restart CAN communication of the
controller.
4.2 CAN Configuration
The controller supports the J1939 memory access protocol for configuring the unit through the
CAN interface. The Axiomatic PC-based Electronic Assistant
®
(EA) software can be used for
viewing and changing the controller configuration parameters.
Axiomatic provides PC-based Electronic Assistant
®
(EA) software to communicate with a wide
range of Axiomatic products. The software can be downloaded from the Axiomatic website
The EA uses the Axiomatic USB-CAN converter P/N AX070501 to connect to the CAN
network. The converter with cables can be ordered as an EA kit P/N AX070502.
Please, refer to the user manual UMAX07050X for the description of the EA and associated
products, and for the CAN network connection troubleshooting.
The user should use EA software version 5.15.113.0 or higher, which supports this controller
firmware. The most recent EA software version can be downloaded from the Axiomatic website.
Before connecting to the CAN network, the user should ensure that the EA baud rate is the
same as the baud rate used by ECUs on the network. The EA baud rate is displayed in the
bottom-right corner of the EA screen and can be changed in the
Options
menu.
If the controller is the only one ECU on a temporary network set for configuring the unit, the EA
baud rate should be set to the baud rate of the CAN network where the controller is planned to
be deployed. This baud rate will be stored in the ECU non-volatile memory and used by the
unit on the next power-up.
