I am working on a CAN bus using an Axiomatic ECU and an actuator which has a built in CAN controller. When I first wired up the network and components, I was not aware that the a 120ohm termination was required at the Axiomatic ECU. When I opened communication to the bus I was not able to connect to the Axiomatic unit, but I did connect to the actuator controller. It was suggested to me that the controller had a built in termination resistor.
Now I have spliced in a 120ohm resistor between the H&L just past the connector of the Axiomatic ECU, now when I try to open the communication to the bus i get an error and cannot open the network unless I unplug the actuator controller. This is my first time working with CAN and I honestly have no idea what I am doing, but I want and need to learn in order to complete this project, does anyone have any suggestions where to go from here?
As of now I do not have a CAN ground between the Axiomatic ECU and the actuator controller, but I will try that for the heck of it before the end of the weekend.
Thanks everyone!
Now I have spliced in a 120ohm resistor between the H&L just past the connector of the Axiomatic ECU, now when I try to open the communication to the bus i get an error and cannot open the network unless I unplug the actuator controller. This is my first time working with CAN and I honestly have no idea what I am doing, but I want and need to learn in order to complete this project, does anyone have any suggestions where to go from here?
As of now I do not have a CAN ground between the Axiomatic ECU and the actuator controller, but I will try that for the heck of it before the end of the weekend.
Thanks everyone!