操作终端 2711P-K4M20A  提供用户与计算机之间的接口

描述： 2711P-K4M20A 是一款 PanelView Plus 操作终端。它是 Allen-Bradley 制造的可视化产品目录的一部分。它用作人机界面 （HMI），具有 3.8 英寸的灰度显示屏，分辨率为 320 x 240 像素。它带有一个键盘操作界面;以太网和RS232通讯端口分别支持以太网I/P、DH485和DF1协议;用于连接外围设备（如键盘、鼠标和 USB 可移动驱动器）的 USB 端口。该端子在输入电源电压下工作tage 为 85-264 VAC，47-63 Hz。

操作终端是指用于与计算机或其他设备进行交互的输入和输出设备。它通常包括一个显示屏、键盘、鼠标、触摸板等输入设备，以及扬声器、打印机等输出设备。

 2711P-K4M20A操作终端的主要作用是提供用户与计算机之间的接口，使得用户可以通过输入设备向计算机发送指令和数据，并通过输出设备接收计算机的反馈和结果。

 2711P-K4M20A操作终端可以分为多种类型，例如台式电脑、笔记本电脑、平板电脑、智能手机等。不同类型的操作终端具有不同的特点和适用场景，用户可以根据自己的需求和使用习惯选择合适的操作终端。

在工业自动化领域， 2711P-K4M20A操作终端也被广泛应用，例如用于控制机器设备、监测生产过程、收集数据等。这些操作终端通常具有坚固耐用、防水防尘、易于操作等特点，以适应工业环境的特殊需求。

操作终端 2711P-K4M20A  提供用户与计算机之间的接口

Description: The 2711P-K4M20A is a PanelView Plus operator terminal. It is part of a visual product catalog made by Allen-Bradley. It serves as a human-machine interface (HMI) with a 3.8-inch grayscale display with a resolution of 320 x 240 pixels. It comes with a keyboard interface; Ethernet and RS232 communication ports support Ethernet I/P, DH485 and DF1 protocols respectively. USB ports for connecting peripherals such as keyboards, mice, and USB removable drives. This terminal operates at input voltage with tage of 85-264 VAC, 47-63 Hz.

An operating terminal is an input and output device used to interact with a computer or other device. It usually includes input devices such as a display, keyboard, mouse, touchpad, and output devices such as speakers and printers.

The main role of the 2711P-K4M20A operating terminal is to provide an interface between the user and the computer, so that the user can send instructions and data to the computer through the input device, and receive feedback and results from the computer through the output device.

The 2711P-K4M20A operating terminal can be divided into various types, such as desktop computers, laptops, tablets, smartphones, etc. Different types of operation terminals have different characteristics and application scenarios. Users can choose the right operation terminal according to their own needs and habits.

In the field of industrial automation, the 2711P-K4M20A operating terminal is also widely used, such as for controlling machinery and equipment, monitoring production processes, and collecting data. These operating terminals are usually rugged, waterproof and dust-proof, and easy to operate to meet the special needs of industrial environments.