140CPU31110模塊是施耐德電氣制造的處理器模塊，它是為高性能而設計的，具有多種通信選項。
可編程序控制器（ProgrammableController）原本應簡稱PC，為了與個人計算機專稱PC相區(qū)別，所以可編程序控制器簡稱定為PLC（ProgrammableLogicController），但并非說PLC只能控制邏輯信號。PLC是專門針對工業(yè)環(huán)境應用設計的，自帶直觀、簡單并易于掌握編程語言環(huán)境的工業(yè)現(xiàn)場控制裝置。
它采用一種可編程的存儲器，在其內部存儲程序，執(zhí)行邏輯運算、順序控制、定時、計數(shù)和算術運算等操作，并通過數(shù)字或模擬輸入/輸出控制各種類型的機械或生產過程。

可編程邏輯控制器（PLC）的用途有：

順序控制：PLC取代了傳統(tǒng)的繼電器順序控制，被廣泛應用于注塑機、印刷機械、訂書機械、切紙機等。
過程控制：主要對溫度、壓力、流量等模擬量的閉環(huán)控制。
數(shù)據處理：PLC具有數(shù)學運算、數(shù)據傳送、數(shù)據轉換、排序、查表、位操作等功能，可以完成數(shù)據的采集、分析及處理。
通信及聯(lián)網：PLC通信含PLC間的通信及PLC與其它智能設備間的通信。

140CPU31110

The 140CPU31110 module is a processor module manufactured by Schneider Electric that is designed for high performance with a variety of communication options.
Programmable controller (ProgrammableController) originally should be referred to as the PC, personal computer designed according to the PC in order to distinguish, so referred to as PLC programmable controller (ProgrammableLogicController), but is not to say that PLC can only control logic signal. PLC is specifically designed for industrial environment applications, with intuitive, simple and easy to master the programming language environment of the industrial field control device.
It uses a programmable memory in which it stores programs, performs operations such as logical operations, sequence control, timing, counting, and arithmetic operations, and controls various types of machinery or production processes through digital or analog inputs/outputs.
Programmable logic controllers (PLCS) are used for:

Sequence control: PLC replaces the traditional relay sequence control, and is widely used in injection molding machines, printing machinery, stapler machines, paper cutting machines, etc.
Process control: The main closed-loop control of temperature, pressure, flow and other analog quantities.
Data processing: PLC has mathematical operation, data transmission, data conversion, sorting, table lookup, bit operation and other functions, can complete the data collection, analysis and processing.
Communication and networking: PLC communication includes communication between PLC and communication between PLC and other intelligent devices.

140CPU31110