The best way for me to do it was to use node-red. Fantastic program for us newbies with little coding experience. Highly recommended. I’m running it on the pi that is sending the values to the MM pi. Works great.
I actually managed to figure it out. The problem was in the configs for the individual modules. They were set for ´config.js´ instead of ´config.units´ and ´congif.timeFormat´. Once I changed those it worked out.