Transverse Field Analysis (TFA) is a powerful technique that drives PCB design, but it's not easy for new designers to understand. That's why we've put together all about how you can learn PLC programming without taking out a huge loan from the bank or spending my whole life savings on tuition. It will take you less than 24 hours to master even the most challenging PLCs. Since learning how to program PLCs means knowing how to design them. First, you need to understand that there are three different kinds of machines that use PLCs: industrial (e.g. motor drives for production plants), domestic (e.g. household devices such as fans or thermostats), and safety (e.g. door bells).






