Features and use of the KAMAMI KA-LOGO!-IO-Simulator
KAMAMI, Poland, makes a much better simulator than Siemens! The unit has 8 input signals and, of those, inputs 7 and 8 can be switched to analog with selection of onboard potentiometer, photosensor, temperature sensor and external 0 - 5 V input.
This video discusses the features and internal circuit of the simulator board.
https://kamami.pl/zestawy-startowe-edukacyjne/563006-ka-logo-io-simulator-zestaw-symulacyjny-dla-sterownika-siemens-logo-8.html