The principle of touch screen control PLC

The industrial touch screen is an intelligent interface that connects people and machines through touch industrial displays. It is an intelligent operation display terminal that replaces the traditional control buttons and indicator lights. It can be used to set parameters, display data, monitor equipment conditions, draw curves/animations, etc.

HITECH is a *** in Taiwan, known as Hitech in Chinese mainland. It is the *** of Taiwan Quanyi Electronics Co., Ltd., which was established in 1981 and initially produced electronic watches for pens. In order to transform Quanyi into a technology-oriented company, in 1984 began to develop ...

The visual system is a rising star in industrial automation, and the demand for work efficiency in modern industrial automation is constantly improving, and the traditional manual detection mode can no longer meet the needs of production. The emergence of machine vision system is a good replacement for cumbersome traditional manual labor.

For industrial capacitive touch screens, we are very familiar with it and will be applied in many fields. In the market, we can see a variety of industrial touch screens. The choice is more difficult, so you should also be cautious when choosing. Today, how to recognize and choose an industrial capacitive touch screen. ...

The communication method is selected to control the inverter to complete the system control function, and the user can control the operation of the system through the touch screen. Through the pressure transmitter installed on the outlet pipe network, the outlet pressure signal is turned into a 4-20mA or 0-10V standard signal and sent to the built-in PID adjustment of the PLC.

Fault phenomenon: A touch screen, its click accuracy decreases, and the cursor is difficult to locate. Fault analysis and processing 1) Run the touch screen calibration program. (Start - Settings - Control Panel - Acoustic Screen ---Capberate Button). ...

Since the founding of the People's Republic of China, China's science and technology has reached a qualitative leap, and now in 2015, the industrial human-machine interface has been more perfected to ensure that the communication with people in the process of use has always been smooth, not only that the industrial human-machine interface has also been more widely used. ...

Capacitive technology contact screens are operated using the current induction of the human body. The capacitive contact screen is a four-layer composite glass screen, the inner and outer surface of the glass screen and the interlayer are each coated with a layer of ITO, the outermost layer is a thin layer of silica glass maintenance layer, and the interlayer ITO coating is used as the working surface, and the four corners are led out ...

Resistance contact is divided into four-wire resistance and five-wire resistance contact, the simple difference is four wires and five wires in the functional area. A constant voltage of 5V is added to each layer of the two-layer transparent metal layer with four-wire resistance analogue technology: ...

Industrial tablet PC, that is, industrial all-in-one computer, consists of a contact screen, a display screen, a motherboard, memory, a hard disk, an I/O interface, etc. The scale is generally 8-21 inches, and the wide temperature and wide pressure planning is selected, which can be flexibly used in harsh environments such as temperature and application space, including vehicle-mounted, self-service terminals.

The touch screen interface is the same as the general interface, in addition to the touch screen interface, other user interfaces include web interface, software interface, game interface and mobile phone interface. Touchscreen interfaces have a lot of similarities with them: the most basic thing is that they are all interactive systems, and they are all ...

The contact screen of mobile phone capacitive contact screen and resistance contact screen are mainly different in contact sensitivity, accuracy, cost, multi-point contact feasibility, damage resistance, cleaning, and sunlight visibility. Contact sensitivity, 1 ...

Basic Functions: Display of equipment working status: such as indicator lights, buttons, text, graphics, curves, etc.; Data and text input operations, printouts; Production formula storage, equipment production data recording; simple logical and numerical operations; Can...

1. Four-wire resistive touch screen: It is not afraid of dust, oil and photoelectric disturbance, and is afraid of scratches is its main defect. It is suitable for public places with fixed users, such as industrial control sites, offices, homes, etc.; 2. Five-wire resistive touch screen: Excellent sensitivity and transmittance ...

When the touch screen is connected with the PLC, in fact, the memory of the PLC is used, (the touch screen also has a small amount of memory, which is only used to store system data, that is, the screen, controls, etc.), the touch screen and the PLC communication is generally the master/slave contact, that is, the touch screen reads the data from the PLC, and the judgment is made in the display ...

NaturalID: NaturalID skills can meet the explosive increase in demand for biometric sensing, from mobile payment transactions and cloud services to enterprise mobile device security, including the entire ecosystem under FIDO (Online Fast Identity Authentication). ...

Capacitive touch screen skills use human current to detect jobs. The capacitive touch screen is a 4-layer composite glass screen. The inner and outer surface of the glass screen and the interlayer are coated with a layer of ITO, and the outermost layer is a thin protective layer of silica glass. Sandwich ITO coating for the working surface, 4 edges guiding 4 electrodes, internal ITO for ...

1. Understand the function In order to make the human-machine interface play a better role at low temperature and achieve a good use effect, it is necessary to select a high-function machine, and the machine's ...

TWO HITECH TOUCH SCREEN COPY PROGRAM METHODS: 1. Make a communication cable first. HMI1 COM port HMI2 COM port 25-pin female 25-pin female 　　​ 　　RXD 3 ...

Embedded device contact screens can be divided into five categories according to their technical principles: vector pressure sensing, resistive, capacitive, infrared, and surface acoustic waves. Among them, resistive contact screens are used more in embedded systems, and resistive contact screens can be divided into four wires, five wires, seven wires and so on. So so...