Sobakava
Full Member level 6
I need ideas / schematics for PLC like industrial opto-isolated digital inputs... I want to detect passive switches and 12V/24V proximity sensor outputs using only one pair of terminal block input... I mean, I want to be able to use passive and active type inputs without doing modification on board...
Is it possible? How do they do that in commercial PLCs?
Is it possible? How do they do that in commercial PLCs?