Adding CAN modules and sensors
To connect the CAN module or CAN sensor to the system's CAN bus, go to Interface >> CAN Configuration >>
Select the CAN1 or CAN2 tab (choose the connected physical CAN1 or CAN2 port on the master module).
Click "Configure" and wait. The system will begin querying the CAN bus and then display the data lines and the message "Done!"
The modules and sensors connected to the CAN input will be displayed in a tab in the list. Click "Apply" and then "Restart".
The device's green "CAN Status" LED will light up.
The CAN bus has no topology, and it is impossible to determine which sensor is connected to which.
Go to the "System Structure" panel to view the new devices or sensors.
If they are not displayed, please wait a moment or refresh the page.
If the prompt resets to "Update" after clicking the "Configure" button, the line is not connected or the bus termination resistors do not match.
Check and correct the status of the TR termination resistors (see the "TR Termination Switches" section above) on the modules, or check and replace the connecting cables if necessary.
Warning:
If the bus is not matched - that is, if there are faulty contacts or cables, the TR termination resistor is switched on at the intermediate devices, or the line is too short for matching at both CAN end devices - CAN communication on that line may malfunction or the entire line may fail. (A CAN line failure can occur if the parallel CR switch is in state 1; it must be switched off.)
LED
CAN sensors have LEDs that indicate the following states:
- Solid red light, flashing green light – no communication with the master module.
- Solid red light, green light off – connection to the master module exists, but the sensor is not configured in the monitoring system.
- Red light off, solid green light – operating in the monitoring system.
- All LEDs off: no power supply or sensor defective.