Description
XV-252-57CNN-1-10-PLC-SET Eaton touch screen
XV-252-57CNN-1-10-PLC-SET Eaton touch screen
Module Clips Drive controller servo motor
Contact: Mr. Lai
Wechat:17750010683
Whats app：+86 17750010683
Skype：+86 17750010683
QQ: 3221366881
3221366881@qq.com
Tips for effective touch screen operation
Now you may find in many public places a computer input device that everyone uses. This is a computer that allows users to directly operate the screen with their fingers. This type of computer is actually the touch screen that people often talk about. Touch screens are not only suitable for China’s national conditions for multimedia information inquiry, but also have many advantages such as durability, fast response, space saving, and ease of communication. Using the touch screen, our users can operate the host by simply touching the icons or text on the computer display with their fingers, making human-computer interaction more straightforward. This technology greatly facilitates users who do not know how to operate computers. . Touch screen technology is now used in many banks, hospitals, hotels, shopping malls, sales halls, schools, libraries, museums, theaters, exhibitions, stations, large bookstores, tourist resorts, communities and other large public places. So do you know how a touch screen works? Are you familiar with touch screen operations?
Generally speaking, when we operate a touch screen, we must first touch the touch screen installed on the front of the display with a finger or other object, and then the system locates and selects information input based on the location of the icon or menu touched by the finger. The touch screen consists of a touch detection component and a touch screen controller; the touch detection component is installed in front of the display screen to detect the user’s touch position, and then sends it to the touch screen controller; and the main function of the touch screen controller is to receive touches from the touch point detection device information, convert it into contact coordinates, and then send it to the CPU. It can also receive commands from the CPU and execute them. In order to operate the touch screen efficiently, it is necessary for us to first understand the working principles of various types of touch screens:
1. Working principle of resistive touch screen
The working principle of a resistive touch screen is mainly to operate and control the screen content through the principle of pressure sensing. The screen body of this touch screen is a multi-layer composite film that is very compatible with the display surface, of which the first layer is glass or plexiglass. The bottom layer, the second layer is the partition layer, and the third layer is the multi-resin surface layer. The surface is also coated with a transparent conductive layer, and is covered with a hardened, smooth and scratch-resistant plastic layer on the surface. The conductive layer and glass layer sensor on the surface of the polyester are separated by many tiny layers; the current passes through the surface layer, and when the surface layer is lightly touched and pressed down, it touches the bottom layer, and the controller reads commensurate currents from the four corners at the same time. and calculate the distance between finger positions. This kind of touch screen uses two highly transparent conductive layers to form a touch screen. The distance between the two layers is only 2.5 microns. When a finger touches the screen, the two conductive layers that are usually insulated from each other come into contact at the touch point. Because one of the conductive layers is connected to a 5V uniform voltage field in the Y-axis direction, the voltage of the detection layer changes from zero to Non-zero, after the controller detects this connection, it performs A/D conversion and compares the obtained voltage value with 5V to obtain the Y-axis coordinate of the touch point. In the same way, the X-axis coordinate is obtained. This This is the most basic principle common to all resistive technology touch screens.
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1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon controlled 5SHY 3BHB01 3BHE00 3HNA00 DSQC series
BENTLY — 3500 system/proximitor, front and rear card, sensor, probe, cable 3500/20 3500/61 3500/05-01-02-00-001 3500/40M 176449-01 3500/22M 138607-01
Emerson — modbus card, power panel, controller, power supply, base, power module, switch 1C31,5X00, CE400, A6500-UM, SE3008,1B300,1X00,
EPRO — PR6423 PR6424 PR6425 PR6426 PR9376 PR9268 Data acquisition module, probe, speed sensor, vibration sensor
FOXBORO — FCP270 FCP280 FCM10EF FBM207 P0914TD CP40B FBI10E FBM02 FBM202 FBM207B P0400HE Thermal resistance input/output module, power module, communication module, cable, controller, switch
GE —- IS200/215/220/230/420 DS200/215 IC693/695/697/698 VMICPCI VMIVME 369-HI-R-M-0-0-E 469 module, air switch, I/O module, display, CPU module, power module, converter, CPU board, Ethernet module, integrated protection device, power module, gas turbine card
HIMA — F3 AIO 8/4 01 F3231 F8627X Z7116 F8621A 984862160 F3236 F6217 F7553 DI module, processor module, AI card, pulse encoder
Honeywell — Secure digital output card, program module, analog input card, CPU module, FIM card
MOOG — D136-001-007 Servo valve, controller, module
NI — SCXI-1100 PCI – PXIE – PCIE – SBRIO – CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card
Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module, base module
Woodward — 9907-164 5466-258 8200-1300 9907-149 9907-838 EASYGEN-3500-5/P2 8440-2145 Regulator, module, controller, governor
YOKOGAWA – Servo module, control cabinet node unit
Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
