I too was a programmer and technician for over 30 years. I worked mainly with building automation, but also spent some time with scada systems for water treatment. I also think hardware when I hear multiplexer. But that does not appear to be the case in these circumstances. I am currently running the newest release of Marlin on a Makerbase MKS Gen L V2.1 control board. Up until a few days ago Iby charles1954 - Tech-Talk
Hi Everyone I was wondering if anyone could provide the sequence of operation for the cooling fan multiplexer. According to the configuration file comments you can have up to 2,4, or 8 cooling fans. This makes sense since you have 3 multiplexer selectors. This would give the following: 0,0,0 = no multiplex, single cooling fan, 1,0,0 = 2 multiplexed fans, 1,1,0 = 4 multiplexed fans. Depending oby charles1954 - Tech-Talk