Hi. I'm using CAN_RX_ENH_FIFO, but I believe this question applies to CAN_RX_ENH as well. Both these FBs have an input variable called "Extended". However, it seems to be poorly documented. To me, it looks like the description has been copied from the "TX" FBs. But regardless of the documentation, one would think that it would allow selecting between standard (11 bit) and extended (29 bit) frames, but this is not the case: Regardless of if Extended is true or false, both types of frames are received on my CR0403 with latest V3 runtime. Also note that the output variables does not give any information about if the received frame was standard or extended. Or have I misunderstood something?

Br,
Peter ?strand
Hytech Drive Nordic