openinverter forum

Actually I was trying to debug a Pot2 Fault with the webinterface connected via CAN bus. Sometimes (felt like mostly when starting to accelerate or changing direction) I got fully implause values. To double check, I plotted the version number which also changed. CAN Cable is inside the vehicle, HV underneith. CAN is shielded and on one side connected to ground.

Is it interference of the CAN bus or something else? What to change?

What can happen if the bus is badly disturbed that a repeated old message is treated as the reply to the latest message (or so). You will notice that version takes the value of pot.
Values themselves virtually cannot be altered as CAN has a CRC on the transport level.

WOw , you are right. So basically, transport level skips a message because of CRC, but our openinverter CAN Openlevel does not handle this fault?