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The problem of frequency converter interfering with the communication between PLC and peripheral equipment
With the continuous development of industrial automation technology, frequency converter (Frequency Converter), as an important device for controlling motor speed, is widely used in various industrial fields.
However, due to the characteristics of the inverter itself and electromagnetic interference, it w
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Basic Principles of Industrial Automation PLC
PLC (Programmable Logic Controller) is an electronic device widely used in the field of industrial automation. It can be used to perform various control tasks, such as motion control, data acquisition and monitoring. PLC has high reliability, flexibility and scalability, making it one of the key technologies of mode
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Siemens S7-300 PLC wiring diagram
Wiring diagram of digital input module: Digital input module SM 321; DI 32x 24 VDC; Digital input module SM 321; D132 X 20VAC;
CPU 313C, CPU 313C-2 DP/PtP, CPU 314C-2 DP/PtP: DI/DO
1) Only applicable to CPU 314C-2
CPU 314C-2 built-in I/O terminal wiring diagram
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The relationship between single chip microcomputer and PLC
AVR microcontroller is an enhanced RISC (Reduced Instruction Set CPU) high-speed 8-bit microcontroller with built-in Flash developed by ATMEL in 1997. AVR microcontrollers can be widely used in various fields such as computer peripherals, industrial real-time control, instrumentation, communication equipment, and house
[Microcontroller]
Huawei established the PLC-IoT Ecological Alliance and launched contactless payment in cooperation with UnionPay
Today, Huawei and China UnionPay Co., Ltd. held the 2019 PLC-IoT Industry Development Forum and Huawei PLC-IoT Ecological Alliance Establishment Conference in Dongguan. At the conference, the "Huawei PLC-IoT Ecological Alliance" initiated by Huawei was officially established. A total of 43 industry partners from multi
[Mobile phone portable]
What are the 10 PLC analog input filtering methods?
1
Limiting filter method/Program judgment filter method
A. Methods:
Based on experience, determine the maximum deviation allowed for two samples (set as A)
Every time a new value is detected, it is judged:
If the difference between this value and the previous value is = A, then the current v
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Four-axis motion control based on PLC
1 Control Task
The control system design requirements of the test diagnosis platform are as follows:
(1) According to the instructions of the on-site installation personnel, the operator issues the servo electric cylinder action command, and the four servo electric cylinders act independently within the to
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Design and Application of PLC Simulation Software
The function of the PLC instruction simulation module is to give certain meanings according to the syntax and semantic structure of the people who have read it, so that it has the function of the PIE CPU. For the instruction simulation module, its input is the various information contained in the syntax tree generat
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- Popular Resources
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Siemens PLC Programming Technology and Application Cases (Edited by Liu Zhenquan, Wang Hanzhi, Yang Kun, etc.)
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