Description
MC2-442-57CQB-1-30 Eaton touch screen
MC2-442-57CQB-1-30 Eaton touch screen
Module Clips Drive controller servo motor
Contact: Mr. Lai
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(2)What are the types of touch screens?
There are two main types of touch screens: capacitive touch screens and resistive touch screens. Capacitive touch screens are used by direct contact with fingers, such as mobile phones; resistive touch screens must be directly touched with a stylus and require a certain amount of pressure, because it works by causing current induction in the upper and lower layers of ITO through pressure.
(3) What are the characteristics of capacitive touch screens?
1. The capacitive touch screen only requires touch and does not require pressure to generate a signal.
2. Capacitive touch screens only need calibration once or not at all after production, while resistive technology requires regular calibration.
3. The capacitive screen has a long service life because the components in the capacitive touch screen do not require any movement; in the resistive touch screen, the upper ITO film needs to be thin enough to be elastic so that it can bend downward to contact the ITO film below.
4. Capacitive technology is superior to resistive technology in terms of optical loss and system power consumption.
5. Capacitive technology is wear-resistant, has a long life, and has low maintenance costs when used by users.
However, capacitive screens also have certain disadvantages. When the ambient temperature and humidity change, or there is magnetic field interference in the environment, it will cause the capacitive screen to drift, causing the touch to become inoperable. Resistive screens are better than touch screens in terms of anti-interference performance, and their price and cost are lower than capacitive screens.
Choosing a capacitive screen or a resistive screen depends on how the screen is used and the environment. If it is used by finger touch and is not in an environment with multiple magnetic fields, the capacitive touch screen is a better choice. If pen touches are required and the anti-interference requirements are high, it is better to use a resistive touch screen in this case.
From the early black and white world to the brilliant and colorful vision that can be seen everywhere, monitors have come a long and arduous journey. With the continuous development of display technology, the classification of LCD screens has become more and more detailed. Shenzhen Jingxian Vision details the classification of industrial touch screens.
1. Four-wire resistive touch screen
The four-wire resistive touch screen is the most widely used and popular type of the resistive family. It is a resistive screen that is not afraid of dust, oil stains and photoelectric interference.
Working principle: Two transparent metal layers of analog technology. When working, each layer adds a constant voltage of 5V on average: one vertically, one horizontally, and a total of four cables are required.
Excellent characteristics: It has the excellent characteristics of one-time correction, high stability, and never drifting. It is suitable for public places with fixed users, such as industrial control sites, self-service terminals, etc.
2. Five-wire resistive touch screen
Working principle: We can understand that two aspects of the voltage field work on the same working surface at different times, but the outer conductive layer will only be used as a pure conductor. When there is a touch, the inner layer ITO contact will be detected separately. Point, and Y-axis voltage value method to measure the position of the touch point. Its inner layer ITO requires four leads, and the outer layer only takes one day. The touch screen has 5 leads!
Excellent characteristics: Not afraid of dust and water vapor, the service life of the five-wire resistive type is much longer than that of the four-wire type. It can be touched with any object and can be used to write and draw. It is more suitable for use by limited people in the industrial control field and offices.
3. Eight-wire resistive touch screen
Working principle: The eight-wire resistive touch screen is based on the four-wire resistive touch screen. It adds a reference lead line to each lead line of the four-wire type, thus doubling the number of lead lines to eight. The four additional leads are auxiliary leads. Their function is to read the actual voltage produced by the drive voltage so that the eight-wire resistive controller can automatically correct for the drift that occurs.
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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
