PLC programming is an electronic system for digital operation. It uses a programmable memory to store instructions for performing operations such as logic operations, sequence control, timing, counting, and arithmetic operations, and digital and analog. Type input and output, control various types of machinery or production process, the following is a summary of PLC programming learning experience.
The PLC programming learning experience is summarized as follows, hope that the industrial control friends have a better way, please add:
1. Have a certain electrician foundation-----Master the use of sensors, proximity switches, encoders, pneumatic components and other common components and relay control principles.
2. Learn the number system and the number system conversion ---- grasp the concept of binary, octal, hexadecimal, BCD code, ASCI code.
3. Choose the PLC brand of your region as a learning model.--------- After learning, you can better connect with the actual work.
4. Buy a laptop (not less than the CPU is preferably dual-core or above, 1G memory, hard disk 80G, with serial port) ----- must learn and go out to work.
5. Learn the basic operations of the computer, such as power-on shutdown, file saving and basic application of WORD, EXCEL office software (computer users will); installation and uninstallation of common software (such as installation and uninstallation of programming software); typing (using Name the program and add a comment).
6. Look for PLC programming software and simulation software, teaching software (and of course learn to use them). -----Required learning equipment.
7. Buy related books and video materials. ----- Learning materials.
8. Find the PLC programming manual, user manual, and use cases, which can be obtained from online collection or participation in product promotion. ----The data that will definitely be used in the work.
9. After the above is prepared, you can self-learn the PLC. Generally speaking, the basic instructions of the PLC ladder diagram are easy to learn, and the logic relationship is connected with the relay control schematic. But the functional instructions are a lot harder.
10. It is best to go to a school with good reputation and good reputation. ----- Compared with self-study, you can shorten your study time and learn more systematically. You can also pay more teachers and students for future development.
11. Use all means to get to know your peers, PLC manufacturers, agents, in order to get their help and useful information.
12. Persist in learning, communicate more with peers, and practice more. ----- Programming is highly integrated with theory and skills. It is necessary to read more books and practice to improve programming techniques.
13. When going out of the package project, you should also prepare the PLC program decryption software of this type ------ because sometimes you will forget the password that has been added in your own program, and sometimes it is the program encrypted by others, the customer wants you to re-use it. Optimize, add new features, modify parameters, and delete programs that were scheduled to stop. This is why many people are looking for decoding software.
Thermometers include bimetallic thermometers, pressure thermometers and marine thermometers, which are suitable for detecting and controlling the liquid level of containers in shipbuilding and other industries.Bimetallic thermometer is a field detection instrument for measuring medium and low temperature. It can directly measure the temperature of liquid steam and gas medium in the range of - 80 ℃ - + 500 ℃ in various production processes. The main element of industrial bimetallic thermometer is a multilayer metal sheet composed of two or more metal sheets, which works based on the principle that two different metals have different expansion degrees when the temperature changes. It is composed of a bimetallic sheet wound into a circular bending shape. When one end is heated and expanded, the pointer is driven to rotate, and the working instrument will display the temperature value corresponding to the thermal potential.
Pressure Type Thermometer,Metalic Protector Thermometer,Flange Bimetallic Thermometer,Glass Tube Industrial Thermometer
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