LearningPLC programmingrequirescertainbasic electricalknowledge.What are the specific requirements?Today, I will discuss this.
1.Electrical Safety:
As long as you are considering a career in the electrical automation industry,regardless of whattechnology you learn, the first priority isto havea sense of safety,and tohave respect for the field.
2.Relays and Control Circuits:
I recommend that everyone buya switching power supply,several relays,some signalindicator lights,and buttons of various colors,and find a few projectsto practice hands-on.Repeatthe wiring,andtest repeatedly, for example: when testing different projects using buttons, should you use normally open contacts or normally closed contacts? Should the button be placed before or after a certain load? Will moving the deployment position produce different control effects, and why does this change occur?.
Once you are proficient, findsome relatively complex projectsto test your understanding of the relevant basic knowledge.Once you have a clear understanding of the relay control circuit, learningPLCprogramming will be very easy.BecausePLCprogramming languages are derived from relay control circuits,which isthe foundation for learningPLCprogramming.
3.Usage of Related Components:
For example,sensors,motors,and among sensors,there are five common types: temperature, photoelectric, pressure, inertial, and magnetic switches; the simplest pneumatic components are solenoid valves and cylinders.You need to first understand the basic principles of how many positions and ports the solenoid valve has,and how to control the motor throughfrequency convertersand contactors.
For friends with no background,I strongly recommend that you practice hands-on. Just understanding from books and being able to describe it verbally is not enough; you must actually operate and complete tasks proficiently.