Thank you for the replies !!!
I will look into the Siemens LOGO.
This is not a project for school, it is an actual site I am working on, but am new to the electrical business, however have been an IT guy for 20 years. I am an apprentice electrician, but they are helping me to advance by...
I have 40 fans in a large warehouse. I need them to be controlled by temp, and humidity. When temp sensor 1 reaches a certain level fans 1-9 come on, if it goes to another level fans 10-19 come on.
Same with humidity. I also need these fans on timers, so when they kick on they will stay on for...