Hi, I have changed the order of these in the DIN/DOUT chain. I now have the TPD first then the BLM I have edited the MBSEQ_HW file, but there is something wrong. The 4 LED's on the TPD are constantly on, and the BLM acts strange Could someone please check the attached file, and see if they can see something wrong Cheers:) MBSEQ_HW.V4