Hi. I also could not get cell voltage data via mcp2515 and interCAN. But after I connected to the batteries via LVESS using CANalist II and interCAN, I started receiving data via mcp2515 too. I think that some command is needed to start the necessary registers. I also tried connecting via two tja1050 boards, but in this case only interCAN worked for me, and pcs did not work with this connection.