Application of PLC in Industrial Control-EEWORLD

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The above applications focus on quality. In terms of quantity, PLCs can be large or small. So its control range can be large or small. A small one can only control one device, or even one component or one site; a large one can control multiple devices, a production line, or even the entire factory. It can be said that PLCs are indispensable for industrial control in all occasions, big or small.

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Keywords：PLC Reference address：Application of PLC in Industrial Control

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Introduction to S7-200 series PLC free communication port initialization and communication instructions

In this communication mode, the communication port is completely controlled by the user program, and the communication protocol is also set by the user. The relationship between the PC and the PLC is master-slave, and the PC is always in a dominant position. The communication programming of the PLC first initializes

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Introduction to S7-200 series PLC free communication port initialization and communication instructions

How do PLCs in different network segments communicate with each other?

1. Implemented through routing mode If two PLCs belong to different network segments and have data communication needs, the most typical application is to achieve it through routing mode. On the PLC side, you need to enable the "use router" function, fill in the corresponding gateway address, and then call the

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A brief discussion on the delay problem that is easily overlooked in PLC programming

PLC is widely used in special equipment for mechanical processing. However, there is a problem that is often overlooked by novice programmers, that is, the delay problem. Simply put, taking the cylinder as an example, PLC determines whether the action is completed by relying on the limit switch (some unim

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A brief discussion on the delay problem that is easily overlooked in PLC programming

Batu Automation Modbus protocol to Profinet protocol gateway module connects smart instruments and PLC communication

1. On-site requirements: PLC acts as a controller and instrument equipment acts as an execution device. The execution device can respond to the instructions from the PLC in real time and feed back data to the PLC, so that the PLC can control and monitor the instrument equipment and realize precise control of the pro

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Batu Automation Modbus protocol to Profinet protocol gateway module connects smart instruments and PLC communication

Are Mitsubishi PLC programming software FX and 3U series the same?

Mitsubishi Electric is a world-renowned manufacturer of automation equipment. Its PLC (Programmable Logic Controller) products are widely used in the field of industrial automation. Mitsubishi PLC has multiple series, among which the FX series and 3U series are two very popular product lines. Although they both belo

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What is the function of Mitsubishi PLC auxiliary relay

Mitsubishi PLC auxiliary relay is an important component used to implement various control functions in PLC (Programmable Logic Controller) system. This article will introduce in detail the functions, types, applications of Mitsubishi PLC auxiliary relays and how to use them to implement complex control logic.

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Introducing several commonly used PLC control circuits

This section introduces several commonly used PLC control circuits and compares them with relay contactor control circuits, so that readers can fully understand the control principles and application technologies of PLC based on their mastery of relay control systems. Start and stop control of electric mo

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Introducing several commonly used PLC control circuits

Rules for using PLC ladder diagram

The use of PLC ladder diagram should comply with the following rules: (1) Each ladder diagram is composed of multiple rungs. Each coil can constitute a rung. Each rung can be composed of multiple branches. Each rung represents a logic equation. (2) The relays in the ladder diagram are not physical re

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