Is PLC programming hard to learn? Is there a future for doing PLC programming?

The basic knowledge of PLC programming is still relatively easy to learn, especially for those who are good at science and engineering. The basic knowledge of PLC programming needs to understand the relay control circuit first, and the knowledge of low-voltage electrical must be proficient, and be able to read the ladder diagram, which is the basis of electrician. After understanding, the learning of PLC is much simpler.

Before programming, you need to understand some basic hardware knowledge, it is best to start with the selection and drawing of hardware, and wait for the type of input and output, the selection of analog quantities, etc., and then start programming will be simpler. Familiar with the basic hardware circuits, these are clear, you will find that the original ladder diagram and these hardware circuits can be well corresponded. When learning PLC, choose a commonly used PLC model as the learning objective, such as Mitsubishi's FX series or Siemens' S7-200 series.

Finally, the relay control circuit is converted into a ladder diagram, and after the conversion, the ladder diagram can be written on the software, which is the same as the relay line, but the wire is replaced with the connecting wire in the software. After the program is written, ** into the PLC, connect the external circuit (lights, buttons, etc.) and it can run. You can also not connect the external line, the PLC has an IO indicator light, you can look at the status of the light to judge whether the program is correct.

Now the PLC software design is very good, if there is a hardware with better cooperation, if not, install a software, install a simulator, the basic operation is familiar, and then observe the input and output changes of the PLC. Before the program is fully verified, it is recommended to disconnect the load and wait for all the i0 and analog tests to be completed before running with the load.

Extended information: 1. Some beginners have spent a lot of effort on theory, but they still haven't understood PLC for half a year, in fact, they just lack some practical experience in PLC, as long as they carry out some practical ladder diagram writing, programming, debugging and other operations, increase the perceptual understanding of PLC, and soon be able to master PLC technology.

2. Electrical electronics is the basis for learning programmable logic controllers (PLCs). The logic of PLC ladder programming comes from the common relay circuit, you need to understand the working principle of relays, contactors, switches, if you want to learn PLC well, at least be able to understand ordinary circuits, of course, if you have maintenance experience is better, if you don't have any basic knowledge of electrician, then you need to supplement the basic knowledge of electrician. In fact, the basic knowledge of electricians is not difficult to learn, as long as you learn carefully, it takes a month or two to fully master, if you are an electrician changing careers and want to learn PLC, you can skip this step.

It's not difficult, the key is that you have to race hard, right, generally use more now or Siemens, self-study yo suggests that you find someone to take you can give you some guidance!

Have a certain electrician foundation.

There is a future in doing PLC programming. As a programming language, PLC development prospects are still very good, PLC is very practical, and it is also a very advanced technology. First of all, if you are engaged in the PLC industry, then you can program independently and operate an industrial chain automation programming.

You need a platform to get started on your own. Because PLC not only refers to programming, but also has an overall automatic input and output, communication, programming, and control. And so on, he is also divided into several PLCs, such as Mitsubishi, Siemens PLC and Omron, which are widely used in the market.

First of all, confirm your own development direction and have a clear goal, so that you can do this well.

PLC programming is not as monolithic as other programming projects, and I think it is more focused on hardware basics. It not only needs to learn programming, but also needs to cooperate with the design of peripheral circuits, to master the things are miscellaneous and different industrial control projects, such as PLC programming of various non-standard equipment systems, for the selection of PLC and electrical components for control requirements, in this overall process to go through the mechanical design of the equipment for component selection, PLC programming, distribution cabinet design (schematic, installation version, etc.), debugging and other processes, which is a PLC engineer should master the basic skills.

Learning PLC is a long process of experience accumulation, of course, the introduction of PLC is very simple, are some basic switching control is easy to understand, PLC programming is very simple, the foundation is good for one or two months to be familiar with the programming environment, such as a variety of PLC corresponding programming software, with programming manuals and various application instructions will gradually understand, but you can really use the instructions are not few, which should cooperate with our control objects to select instructions, such as some control servo motor motion positioning instructions, Communication commands to connect with other devices, etc., these instructions are not difficult, but you don't need them, or you don't have the corresponding control equipment, such as controlling the forward and reverse rotation, delay and other simple actions of a motor. Therefore, learning PLC is not only about being familiar with programming, but more importantly, about what it controls. The more familiar you are, the higher your PLC programming skills will be, and of course the higher the salary will be.

The hardest part of PLC programming is analyzing the control requirements。Understand the control process, each different control requirements need to use different auxiliary devices, for the mask machine, it has a temperature control system, a transmission system, a feedback system, an alarm system, so there is no such a comprehensive knowledge, to debug the mask machine is still a little difficult. As far as temperature control is concerned, most of the PLC is used for process control, which controls the transmission system to rotate.

Considerations for PLC programmingThe contacts of soft components such as external inputs, outputs, internal relays, timers, and counters can be reused, and there is no need to deliberately adopt a complex program structure to reduce the number of contacts used. Each row of the ladder starts with the left busbar and the coil is connected to the far right. In the relay control schematic, but in the ladder diagram, the contacts are not allowed to be placed on the right side of the ** circle.

People with low education are suitable for learning PLC programming.

Learning PLC programming does not require too high a degree of education, the reason why it is said that the threshold for learning PLC programming is low, and the low is low in this academic qualification, even if you are a junior high school graduate, you can learn PLC programming, because physics has been taught in the junior high school course, and there are some basic knowledge of electricians in the physics course, which is enough to enter the PLC industry.

PLC programming, that is, using the spine programmable controller to write a program to control the wheel shield industrial computer to achieve the purpose of industrial control. This generally does not have very high requirements for academic qualifications, and technical jobs have high requirements for real level and programming ability.

The educational threshold is not very high, and this major needs to understand electrical relay control, automation control and related process requirements. This can be an apprentice first, and a good professional master will lead you to avoid many detours.

PLC Programming:

PLC programming is a digital arithmetic electronic system designed for use in the environment of the shed industry. It uses programmable memory to store instructions for performing operations such as logic operations, sequence control, timing, counting, and arithmetic operations, and controls various types of machinery or production processes through digital and analog inputs and outputs.

Programmable controllers and their related equipment should be designed according to the principle that it is easy to make the industrial control system form a whole and expand its functions.

With the rapid development of microprocessors, computers and digital communication technologies, computer control has been extended to almost all industrial fields.

Modern society requires the manufacturing industry to respond quickly to market demand, to produce small batches, multiple varieties, multiple specifications, low cost and high quality products, in order to meet this requirement, the control system of production equipment and automatic production line must have extremely high reliability and flexibility, PLC programming is in line with this requirement, it is a general industrial control device based on microprocessors.

PLC programming has a good outlook.

The prospect of this industry is good, that is, it is more hard, now whether it is large equipment, or small equipment, it is basically PLC control, so it is widely used, do not be afraid of losing your job, on the current trend of intelligent development, this industry will become more and more popular. But to learn this, you need to have a certain foundation in electronic control, or it is really difficult. Here's a word for you, no matter what you learn, as long as you learn well, you are an expert, don't be afraid of uselessness.

Basic knowledge and skills related to PLC. Such workers generally work on the assembly line of the factory or as maintenance personnel, and the work is relatively tiring and the salary level is moderate. Master the necessary knowledge and skills of PLC.

These people are relatively professional, they can be engaged in cabinet integration, production line maintenance, program design, line development, etc., the work is not very tiring, and the salary is very good.

PLC mainly refers to the programmable logic controller of the electronic system operated by digital operation, which is used to control the production process of machinery. 1. The basic concept of PLC Programmable Controller (Programmable Controller) is a member of the computer family, which is designed and manufactured for industrial control applications. The early programmable controller was called programmable logic controller (programmable logic controller), abbreviated as PLC, which mainly used Shifanxin to replace the relay to achieve logic control.

A person who is proficient in the knowledge and skills related to the use of PLCs. They are generally engaged in engineers, technical consultants, research and development of new technologies, etc., and the salary is extremely high, but it is more brain-consuming!