Why is it more convenient for PLC to be used for automated production

Generally speaking, in addition to PLC, there is no more suitable equipment for automated production than PLC: 1. Stability, almost no failure; 2. The system is flexible and versatile, and you can do it if you want to; 3. It is easy to get started, and ordinary electricians can do simple control programming; 4. Good scalability; 5. I can't think of her shortcomings yet.

The PLC has a small CPU, registers, with input and output terminals. Control the device by setting up the program.

The application is quite extensive. Its cost is low. Easy to operate and small in size.

Changing the program can change the control. So the application is very wide.

It can be programmed according to the requirements and execute the program requirements; Meet your automated setup needs.

Because PLC was born for this.

The system control of the automated production line can be controlled by PLC, or directly by the industrial control computer, which is IPC

It can even be discrete components, such as early relays.

At present, industrial automation systems are usually divided into 5 levels: enterprise management level, production management level, process control level, equipment control level and detection drive level. The high-tech involved in the first two levels of management is mainly computer technology, software technology, network technology and information technology; The high-tech involved in the process control level is mainly intelligent control technology and engineering methods; The high-tech involved in the equipment control stage and the detection drive stage are mainly the three-electric integration technology, fieldbus technology and new device AC digital speed regulation technology.

It should all be controlled by PLC, and the advanced ones will be combined with the computer.

PLC automation mainly relies on a variety of sensors, and what PLC does is only to process the standard signals transmitted by various sensors and then output the standard signals to the sensors.

The PLC is the brain of the whole system, the human-machine interface. Sensors, inverter servos, cylinders and motors. These things combine to form an automated system.

The automated production line is generally not just a system, it is composed of multiple systems, each system completes different functions. In order to realize the joint operation of multiple systems, a higher management level is required, and PLC or industrial computer (IPC) must communicate with each other through various ways, such as CC-link, PROFIBUS, devicenet, etc.

A larger production line should be like this, and the small equipment is a simple controller.

All of the above have PLCs

However, there are also many production lines that do not use PLC, and only need a single-chip microcomputer to be OK.

PLC can be used

But not all.

PLC is the abbreviation of Programmable Logic Controller, which refers to Programmable Logic Controller. It belongs to the category of intelligent control, more flexible and convenient than the previous contactor-relay control, the advantages are mainly in the large and medium-sized production line control, the external circuit is simplified and easy to understand, easy to maintain and repair, real-time monitoring and control can be realized, of course, there are shortcomings, that is, the PLC ** is high. Of course, in layman's terms, it is an actuator switching element.

Mechanical and electrical majors must understand PLC, because PLC belongs to mechanical and electrical control, and if you don't understand it, you can't program operation and equipment maintenance.

Plainly. Good money on hardware and software.

Do you know why so many Electricians plc?

At the age of 20, you can do it and have physical strength. It's okay to do it at the age of 30, almost. Do you want to do it at 40? What about your brain? You can't retire until you're 60 years old!

The work of using the brain is the best, and at least being eliminated is also being eliminated by the strong people who also use the brain.

It's not the same with hands-on, the work that someone will teach will do, and then it will be eliminated by electromechanical automation, which is actually PLC.

Even if the machine can't replace this person, the young man will replace you.

So it's not wrong to learn knowledge and do brain-based work!

But not just one.

Nowadays, many veterans of industrial control understand electricity, machinery, PLC and structure. It is the real mechatronics, which can draw the structure of the machine by one person, and produce drawings for processing and assembly. Then design the control circuit, wiring, installation, power-on and commissioning. Do it alone!

Mechanical principle, structure, materials, mechanical parts, three-dimensional software, two-dimensional software, processing, circuit, pneumatic circuit, hydraulics, power distribution, HMI configuration, PLC program writing, installation and debugging and so on.

You only know PLC, what's the use?

There's a lot more to learn than just PLC!

Do you say he's hands-on or brain-free? Actually, it's all together. But the money earned is the most! The ability is also very strong!

The directions and industries of automated employment are as follows:

1.Power plants (including distribution rooms of individual companies, factories).

2.Software development (especially microcontroller or EDA, etc.).

Generally speaking, it is the direction of industrial control, building an operating platform, etc.).

4.Individual mines, or metal smelting sites (for maintenance, operation, etc. of automated equipment).

5.Go to school and become a teacher.

6.Do sales work (specialize in selling things related to your specialty).

7.Civil servants, every major is fine.

8.All sorts of what institutes.

9.Product design is hardware circuit design.

10.The employment direction of automation major is very wide, and you will know a lot of automation equipment if you look closely at life. However, there is a future in design, there is a "money" way to do sales, and maintenance is a salaryman, which belongs to the service industry.

11.There is a wide range of automation options, and it is not impossible for foreign companies to learn single-chip microcomputers and PLCs well, and if you have good English, it is not impossible for foreign companies.

To learn PLC, we must first choose to learn which manufacturer's PLC, the Japanese PLC has a high degree of internal software integration, and the application is simple Early OMRON and Mitsubishi applications are more, and now due to the application of Siemens PLC and Rockwell due to the first and international partnerships, Rockwell is a little more, (although it is said that learning a brand is profound, others will soon get started, but people's energy is limited, and we must use limited energy in the direction of the most widely used, potential, and development, However, for each brand of PLC have some understanding, including imported, domestic, these have a corresponding understanding, for the characteristics of each PLC, advantages and disadvantages, these have a better understanding, then will be a rare talent in the market in the future. ）

PLC is not a single programming technique, it is a system professional course. A PLC can be broadly considered a highly reliable PC with an operating system embedded in the back. First of all, you need to be proficient in the programming language ladder diagram and statement table language of the PLC itself.

At this level, you can only read the programmed programs and design some of the programs needed for the project. In this industry, it is also necessary to apply VB and VC to realize serial port communication and distributed control system. Knowledge of databases is also required in some large programs.

PLC is a discipline that focuses on the direction of application. So a little more practice. Don't look down on small projects, where you can summarize the logical thinking method for designing programs.

Keep making progress in the summary. For example, every time you go to the site for a test, call the program on site to check it, and understand the structure of the program, what are the differences and characteristics from other programs, then the progress will be faster.

Fresh graduates if conditions permit, you may wish to study in the training institution, Shenzhen Xingkeyuan Automation PLC Training Center is a professional PLC training institution, I learned in the first two years, they are case teaching, so that you can master one to two years of experience and skills in a short time, go out to do engineering.