I have an automation project that requires a large number of sensors (up to 30). I pretend to use an S7-1200 CPU 1215C PLC and these distance sensors (https://www.parallax.com/product/28041
). Is it possible to connect these sensors to the PLC? If so, where can I find more information about the serial communication protocol used? Could you recommend any modules to perform this connection?
And is it possible (or advantageous) to use the PWM output in this situation?
Also, since multiple sensors would be operating simultaneously and close to each other, is there any risk of occurring crosstalk? If so, how can I avoid interferences? Or how to compute the minimum distance at which I can place two sensors without having them interfering with each other?
Thank you in advance.