用在PLC系统和设备之间提供连接的电线被称为软接线。例如,假设一个按钮应该是控制一个电机的运行。在传统的控制系统中,按钮将直接连接到电机。然而,在PLC系统,无论是按钮和电机都连接到PLC。然后,PLC控制程序会完成两者间的互连,实现按钮控制电机。 可编程控制器在60年代末首次在美国出现,当时称为可编程逻辑控制器...
PLC Back to index What is a PLC? PLC stands for programmable logic controller. A PLC is a programmable computing device that is used to manage electromechanical processes, usually in the industrial niche. A PLC is sometimes referred to as an industrial PC, a term that describes a PLC’s ma...
What Is a PLC? A PLC is an industrial-grade digital computer designed to perform control functions—especially for industrial applications. The majority of PLCs today are modular, allowing the user to add an assortment of functionality including discrete and analog inputs and outputs, PID cont...
What is a PLC? PLC stands for Programmable Logic Controller. PLC, obsolete model Current model PLC Figure 1 - PLC A PLC is, by definition, a relay which is controlled by standard electrical inputs in combination with internal relay contacts to provide a variety of control parameters for an ...
If you're familiar withindustrial automation, you may have heard of PLCs. So, what is a PLC and why is it so important in the world of automation? What Is a Programmable Logic Controller? Programmable Logic Controllers (PLCs) are industrial computers, with various inputs and outputs, used...
All PLCs (programmable logic controllers) do essentially the same thing; control some machine process.Typical PLC functionsinclude timing, control, and sequencing of such actions as turning motors, pumps or valves on or off. A safety PLC, on the other hand, is a dedicated controller specifically...
A Programmable Logic Controller, or PLC, is a ruggedized computer used for industrial automation. They can automate a specific process, machine function, or even an entire production line. This article, from our partners at Unitronics, provides an overview of PLCs. How does a PLC work? The ...
semiconductor technology. A PLC splitter’s manufacturing process is similar to those of semiconductors. A typical PLC splitter consists of a PLC chip along with input and output arrays, the number of which depends on the split ratio. PLC splitters, are used to evenly divide one or two optical...
All PLCs (programmable logic controllers) do essentially the same thing; control some machine process.Typical PLC functionsinclude timing, control, and sequencing of such actions as turning motors, pumps or valves on or off. A safety PLC, on the other hand, is a dedicated controller specifically...
The PLCC, Plastic Leaded Chip Carrier is a form of SMD IC package that can either be soldered to the board or mounted in a socket.