The Design For The Auto-Control Experiment System Of PLC

During exploring and recognizing of the natural regulation, scientific experiment is important and necessary , so we can say that no experiment, no up-to-data science. Teaching of Programmable Controller is not only to teach students the theory, but also to enhance the training of their practical ability.The principle of Programmable Controller is abstract , however, the application of Programmable Controller tightly combines to the process of production. The practice teaching is possessed of larger proportion in this course. By the practice teaching, students not only comprehend the Programmable Controller's theory, but also mastery the advanced control technology. And better teaching effect can be reached.The auto-control experiment system of PLC was developed based on an experimental box,, which is equipped with a personal computer connecting with a network, AC relay, indicator light and a full-scale simulate controlled object.The auto-control experiment system of PLC is equipped with a power supply, a buttons box, a transducer box, a Programmable Controller box and a relays box. The control cycles are connected with poles. The system can provide monomer experiments, net experiments, and also can provide validated, colligated, designed experiments.This experiment system is designed for improving the students'skill of developing products, and it remains enough space for students to extend its application. The experiment system includes a number of backup instruments, and the PLC also has spare logic elements to help students to extend it to an actual industry cycle with an additional programming. With the development of the electronic technology, it has the capability to be updated by adding buttons, logic elements and modules to fit new experimental requirements in future.