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.
The question is, is the industrial human-machine interface really the communication between humans and machines? Then look down:
Industrial Human-machine Interface (Industrial HMI) is an intelligent terminal with a microprocessor, which is generally used in industrial occasions to complete the information interaction between humans and machines, including text or graphic display and input functions. Now there are also a lot of industrial human-machine interfaces because of their sophisticated human-machine interface technology and high reliability are widely used in smart buildings, smart homes, urban information management, hospital information management and other non-industrial fields, therefore, industrial human-machine interfaces are developing to a wider scale of use of high-reliability intelligent information terminals.
According to different functions, industrial human-machine interfaces are traditionally divided into three categories: text displays, touchscreen human-machine interfaces, and tablet computers. The text display is generally controlled by a single-chip microcomputer, which has a weak graphical display function and low cost, which is suitable for low-end industrial human-machine interface. The touch screen human-machine interface uses a higher level of embedded computer planning, and now the more popular plan is to use a 32-bit ARM microprocessor, the main frequency is generally above 100MHz, and the embedded operating system such as Linux or WinCE is selected. The touch screen man-machine interface has a wealth of graphic functions, can complete a variety of needs of graphic display, data storage, networking communication and other functions, and high reliability, lower cost than tablet computers, small size, is the first choice for industrial occasions, and has gradually replaced industrial PC to become the main stream of intelligent information terminals in the near future. Tablet PC is a flat planning of industrial PC, generally using X86 architecture planning, Windows XP operating system, with touch screen, CPU function, can complete a lot of data computing and storage, the disadvantage is that the cost is higher, and some with hard disk and fan planning reduces the reliability of the system.
Industrial HMIs are generally equipped with configuration software to facilitate graphical programming for customers. Configuration software is a kind of visual graphical interface programming thing, which is generally used with the manufacturer's hardware, and different industrial human-machine interface hardware generally deploys its own configuration software. Now the human-machine interface configuration software has also begun to develop in the direction of openness, for example, according to the WinCE configuration software, it can be used for a variety of industrial human-machine interface hardware with WinCE operating system.
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How to duplicate the program on two Hitec touch screens
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 -------------------------------- TXD 2
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How many types of touch screen technologies are there? - Hitec
Touch screen can be divided into resistive touch screen, capacitive touch screen, surface acoustic wave touch screen, infrared touch screen, optical touch screen according to the type of skill, why do large-size touch all-in-one machines use infrared touch screen? Let's take a look at these different touches one by one.
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Hitec Industrial HMI Functions and Selection Points
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...
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Precautions for the selection of low-temperature HMI
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 ...
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The driving principle of a capacitive touch screen
1. Projective capacitive contacts
Although the basic structure and working principle of the projected capacitive contact screen is the same as that of the four-wire impedance film, the projected capacitive impedance film does not pass through the contact field, but captures the change of capacitance between the electrodes. Generally speaking, when using the form of capacitive sensor, it can almost ...
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The defect of the capacitive touch screen - Hitec
The light transmittance and clarity of the capacitive contact screen are better than those of the four-wire resistive screen, and of course it cannot be compared with the external acoustic wave screen and the five-wire resistive screen.
The capacitive screen is severely reflective, and the four-layer composite contact screen of the capacitive skill has a strong impact on each wavelength ...
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The difference between human-machine interface and touch screen
In life, we often come into contact with touch screens, and many people will regard the human-machine interface as a touch screen, in a strict sense, there is a fundamental difference between the two.
"Touch screen" is only in the human machine interface product ...
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Guidelines for designing industrial touch screens – Hitech
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.
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Combination of PLC and touch screen and frequency converter – Hitech
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.
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Capacitive touch screen touch principle - Hitech
Capacitive touch screen provides you with a fast man-machine interface so that it can be used all over the world, and its capacitive touch screen with low power consumption, long service life and smooth operation performance is well received by the market, and various capacitive touch screen products emerge in endlessly. With the advancement of the process and mass production, the cost decreases, and gradually ...
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The reason for choosing a vision system is Hitech
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.
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The principle of touch screen control PLC
The control of the PLC itself is completed by the change of the control register D, the input port X, the soft relay condition M and the time relay T and other condition variables, so as long as the condition of these variables can be corrected, the control of the PLC can be completed, and the touch screen can pass through the 232 or ...
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The internal composition of the touch screen - Hitec
The interior of the touch screen can be roughly divided into: communication interface unit, driver unit, memory variable unit, and display unit. In addition to the display unit, the other 3 units are invisible to us inside the touch screen.
1. Communication interface ...
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Industrial touch panel PC function - Hitech
Tablet PC is a relatively simple, natural, and practical new type of human-computer interaction technology machine and equipment, which is mainly used for some self-ribbed business processes. There are many types, among which the industrial contact tablet PC, which brings together computer technology, network technology, sound planning, ...
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Introduction to the type of touch screen - Hitec
1. Resistive contact screen
Analog resistive screen
The analog resistive contact screen is what we generally call the "resistive screen", which is a kind of contact screen that uses pressure sensing to operate.
It uses two layers of ITO (indium tin oxide) plastic film coated with conductive function, two pieces of IT...
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The touch screen is unresponsive after being used for a period of time - Hitec
Problem phenomenon: A contact screen has no response after normal use for a period of time after being turned on.
Problem profiling and processing
1. Check to see if the hard drive is turned off in the "Display Energy Saving Settings" of Wlndows9x. The way to do this is to right-click on the desktop and select the "Properties" ...
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The reason for choosing a vision system is Hitech
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 form of manual detection has been unable to meet the needs of production. The presentation of the machine vision system is a good replacement for the cumbersome traditional manual labor, which is suitable for ...
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Touch screen control PLC method
The function of the touch screen is to control the soft relay of the plc, for example, if you use X3 as the start, then you can connect X3 in parallel in the PLC program, for example, M45, set a virtual button in the touch screen, and then set it to M45 action in its characteristics, then when the touch screen and PLC are connected, ...
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Introduction to touch screen technology - Hitech
The contact screen, simply put, is the combination of input and output, no longer need mechanical buttons or sliders, the display screen is a human-machine interface.
The whole contact screen module is composed of LCD, contact screen, contact screen controller, main CPU, and LCD controller. The contact screen and the contact screen controller are the whole ...
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The reason for the failure of industrial touch screens - Hitech
After clicking on the three corners of the contact screen, enter the offline form (note: different contact screens enter the offline form in different ways). Once in the offline format, click "INITIALIZE", and after clicking, keep clicking "SET-UP-I/O" and then "SET-UP-TOUCH-PANEL". ...
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