I am using CAN API and trying to use a true listen only mode, where the CODESYS device doesn't even send acknowledge to received messages. CAN sniffers like PeakCAN have this mode. I have tried using only the CAN.CANBus_29bit function block, I have also tried only using the CL2.DriverOpenH function, without any transmit or receive function blocks at all. If I use an incorrect baud rate the CODESYS device will cause error frames (seen by Kvaser CANKing or PeakCAN). I need to have complete listen only / analyzer mode so I can connect at any baud rate, not send any ACK / packets at all, if I do not see any messages, than I will close the Driver and open again at a different baud rate.
Any help would be greatly appreciated!
I am using CAN API and trying to use a true listen only mode, where the CODESYS device doesn't even send acknowledge to received messages. CAN sniffers like PeakCAN have this mode. I have tried using only the CAN.CANBus_29bit function block, I have also tried only using the CL2.DriverOpenH function, without any transmit or receive function blocks at all. If I use an incorrect baud rate the CODESYS device will cause error frames (seen by Kvaser CANKing or PeakCAN). I need to have complete listen only / analyzer mode so I can connect at any baud rate, not send any ACK / packets at all, if I do not see any messages, than I will close the Driver and open again at a different baud rate.
Any help would be greatly appreciated!