1. Make sure that the industrial-grade display is plugged and unplugged in when the power is off.
2. In order to ensure the stability and safety of the electrical equipment, the time interval between each turn on and off should not be less than 6 seconds.
3. The LCD screen is a fragile glass product; Any drops, blows, and violent tremors may cause the glass to crack; Stop pressing the display area of the LCD screen; Do not knead the LCD screen and frame vigorously during installation; Special attention should be paid to the overall flatness of the LCD screen to avoid external forces causing "tortuous" and "distorted" of the LCD screen.
4. Considering that the visibility characteristics of the LCD screen will be changed due to the difference in viewing angles, the appropriate viewing angle of the user should be fully considered when installing, and the appropriate viewing angle position of the LCD screen should be changed.
5. In the use or storage, the surface polarizer of the LCD screen should be careful to avoid being scratched by solid objects. (Do not place sturdy objects on top of the LCD screen)
6. In the drive circuit of industrial-grade display, the inverter power supply part contains high voltage, please avoid touching it during operation to avoid causing a lot of unnecessary damage.
7. The industrial-grade display is a wide voltage AC input, and it is suitable for AC 12V switching power supply. (Assuming a voltage input voltage lower than 12V, the display brightness may be reduced.)
8. There are electrical components in the circuit drive part on the reverse side of the liquid crystal display, and kneading and destruction should be avoided in the process of design conception, installation and disposal, otherwise there may be damage to the electrical components and cause the dysfunction of the LCD screen.
9. Industrial-grade displays are precision instruments, and it is forbidden to open, disassemble or modify them by themselves. Otherwise, the LCD screen may be damaged, resulting in the inability to be used normally.
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Advantages and disadvantages of touch screens – Hitech
Shortcoming:
1. Ambient light factor, infrared acceptance tube has the scale of operation between small sensitivity and large illumination, but the contact screen product can not limit the scale of use, from the dark song hall private room to the outdoor use under the high-intensity sunlight on Hainan Island, as a product, it must adapt.
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The driving principle of a capacitive touch screen
1. Projective capacitive contacts
Although the basic structure and operating principle of the projection capacitive contact screen is the same as that of the four-wire impedance film, the projection 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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Capacitive touch screen cable fault solved
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 ...
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The driving principle of the capacitive touch screen - Hitech
1. Projective capacitive contacts
Although the basic structure and working principle of a projected capacitive contact screen is the same as that of a four-wire impedance film, the projected capacitive impedance film does not go through the contact field, but captures the change in capacitance between the electrodes. Generally speaking, when using the form of a capacitive sensor, it can be ...
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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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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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The working principle of the five-wire resistive touch screen - Hitech
The four ends of the touch screen RT, RB, LT, LB four poles, all participate in a uniform electric field, so that the lower layer (indium oxide) ITO GLASS is covered with a uniform voltage, the upper layer is the receiving signal device, when the pen or finger presses any point on the surface, at the finger press, the controller ...
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The combination of PLC and touch screen and frequency converter saves energy – Hitech
Programmable manipulators (PLCs) have always played an important role in industrial field control. With the increase of national investment in the water supply industry, the level of automation of water plant operation has been continuously improved, and the application of PLC in the water supply industry has gradually increased. The touch screen is used with the PLC, so that the operation of the PLC ...
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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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Hitec touch screen calibration method
(1) After the terminal is turned on, find out whether each calibration teaching file is not clicked in the execution step (2) If it exists, perform the step (4);
(2) After the boot is finished, the active high-motion is the quasi-program, prompting the user to calibrate the touch screen, after the calibration is completed, the touch screen driver ...
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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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Lightning impulse control system requirements for industrial touch film screen - Hitech
1) The general requirements of the lightning impulse control system for the industrial touch film screen
1.1. Use the big button as a brief click interface;
1.2. Run your application in full screen;
1.3. Use bright scenery colors (don't use black);
1.4. Make the user touch ...
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The difference between industrial displays and ordinary displays - Hitech
As a display terminal, the industrial display and the general computer display seem to be very similar in appearance, but in fact, there are great differences between the two in terms of structural planning, material selection and functional characteristics. Today, Freer has been planning the structure of the whole machine, the resolution and the appearance of the role, and the information ...
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Hitec touch screen tutorial
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 ...
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Categories and Advantages and Disadvantages of Resistive Touch - Hitech
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: ...
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Precautions for Industrial Touch Screens – Hitech
At present, in the industrial field, intelligent industrial control equipment - programmable logic manipulator (PLC) is widely used in the automatic control of equipment, which brings great convenience to production and daily life. At the same time, visual human-machine interface (industrial touch screen) is also increasingly applied to industrial and agricultural production and its ...
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Hitec touch screen boot test
When the man-machine is started, the man-machine will check whether the hardware project is normal, and the results of its viewing will be displayed in the display area of the LCD.
If there is an abnormal item, it will be marked "Failed" on the right side of the project, and the ...
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Basic functions and selection indicators of human-machine interface
(1) Basic functions:
The operation status of the equipment is displayed, 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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Frequently Asked Questions on Human Machine Interface Products - Hitec
1. What is the difference between the human-machine interface and the "touch screen" that people often say?
Strictly speaking, there is a fundamental difference between the two. Because the "touch screen" is only a hardware part that may be used in human-machine interface products, it is a kind of replacement for the mouse and keyboard part of the function.
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Touchscreen alarm display settings
There are two recommended ways to set up the alarm display on the touch screen:
1. Place the alarm window in the template, so that when the alarm occurs, no matter which screen the alarm window is on, it will automatically pop up, so that the operator can obtain the alarm information.
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