Connecting the Can CON module to a CAN Bus problems
Posted: 14 Apr 2020, 15:33
I am looking to buy the RevPI connect and the Can CON module but I are not sure if this the right hardware. I did not understand how to connect this to the CAN bus
https://revolution.kunbus.com/tutorials ... chliessen/ on this website you can see that it has 4 signals, I understood the CAN_H and CAN_L, this is what a node needs to connect to a CAN Bus.
I also understand what the 2x 60 ohm are for, for reducing noise and the 2.5V is the voltage that the CAN_H and CAN_L work with.
We could not find this in the forums nor in the FAQ, so I have a few questions for which the technical support referred me to this forum:
1. How do we connect this module to the CAN Bus? Some sub questions which are more helpful:
a. How do we connect the resistor and the 2.5V? Pins 1 and 4. It does not make sense to have a 2.5 V power source here since there is no ground going back to this eventual power source and the RevPI works with 5v right?
b. How to connect the resistors to pin 1 and 4 or is this internally connected? Which is the +, which is the - ?
c. Is there example wiring for the CON CAN module, how to connect the X2 to the CAN Bus? I could not find anything
2. How does the module work with shielding? Our system has uses the SAE J1939 standard and this uses CAN_H, CAN_L and CAN_Shield. How does this module handle the shielding, e.g how does the shield terminate in the connector? We are worried that we cannot terminate the shield correctly and that this would not create a complete shielding effect
Thanks in advance!
https://revolution.kunbus.com/tutorials ... chliessen/ on this website you can see that it has 4 signals, I understood the CAN_H and CAN_L, this is what a node needs to connect to a CAN Bus.
I also understand what the 2x 60 ohm are for, for reducing noise and the 2.5V is the voltage that the CAN_H and CAN_L work with.
We could not find this in the forums nor in the FAQ, so I have a few questions for which the technical support referred me to this forum:
1. How do we connect this module to the CAN Bus? Some sub questions which are more helpful:
a. How do we connect the resistor and the 2.5V? Pins 1 and 4. It does not make sense to have a 2.5 V power source here since there is no ground going back to this eventual power source and the RevPI works with 5v right?
b. How to connect the resistors to pin 1 and 4 or is this internally connected? Which is the +, which is the - ?
c. Is there example wiring for the CON CAN module, how to connect the X2 to the CAN Bus? I could not find anything
2. How does the module work with shielding? Our system has uses the SAE J1939 standard and this uses CAN_H, CAN_L and CAN_Shield. How does this module handle the shielding, e.g how does the shield terminate in the connector? We are worried that we cannot terminate the shield correctly and that this would not create a complete shielding effect
Thanks in advance!