The bus monitor doesn't show anything

[677678]

Start is pressed in the bus monitor, but no signal is received，The controller is connected。

[ZY_Ong]

Are you using CAN?

Is the correct baud rate have been set?

Is the termination resistor have been added? If not, you can enable software-selected termination resistor on NI-XNET device in Interfaces and Database > Enable Termination.

[677678]

Hi，

I am using PXIe-8880，XNET-PXIe-8510，

the correct baud rate have been set，also the termination resistor have been added，But I still don't get any signals.

Here is my setting.

[Hooovahh]

---

@677678 wrote:

But I still don't get any signals.

---

Just to be clear the bus monitor doesn't display signals, it only displays frames.  The selecting of the database is just used to select signals to transmit.  Also it is possible that you have 500k baud but need a custom sample point other than the default one.  I've never seen custom sample points needed for CAN 2.0 except at times when the wiring was not standard.  There should be only two terminating resistors on the bus, one at each end.  And each node should not be more than a few inches from the bus.  CAN is pretty robust and often times it will work even when these restrictions aren't used.