Hello,
I discovered a strange phenomenon in my LabView programm. I have a sensor which is sending process data (20ms) and multi frame data (1ms) into a J1939-network. I created a VI, which reads multi frames in the J1939-network (messages are called BAMs). The strange thing is that there is a difference between what my VIs reads and what the xnet-bux-monitor reads. In some frames the payload is completely empty (like in the picture below), but the ID and timestamp is shown.
I based my VI on this example: https://forums.ni.com/t5/Example-Code/J1939-Transport-Protocol-Reference-Example/ta-p/3984291#toc10
I removed the sending part and added a sub-vi which sorts my BAM messages and two error counters. Also I added a vi for stopping the session and flushing the buffer after the while-loop, without this I always gets an overflow of the buffer after a few seconds.
The VI is also in the attachments. Do you can spot any mistakes on it?
Thanks a lot.
Chris
