Hi can anyone please help me understand how Promodul Unit works. This unit is found in a plastic winder machine. I am at loss as cant find any material on net.
Need to understand what those numbers mean including A1 and A2.
Pls see attached pictures
Yikes ...
and you ask because the obsolete control system has to be replaced, right ?
Do you have a printout of the program ?
You could try to contact this guy: http://absengineering.de/English/Engl000.html
Notice on this page it says in the lower right corner that it was updated on 05.05.2019.
So not so long time ago !
"S" is common connect of two NO (normal open) contacts - two relays- next to the "S".
See drawings on the cover.
For example "S" between 22 and 23 is common for two relay outputs 22 and 23.