El diseño principal de la PC del panel industrial:
1. Chasis totalmente-de acero El-chasis de acero del IPC está diseñado de acuerdo con el estándar, que es anti-golpes, anti-vibraciones, anti{{5 }}interferencias electromagnéticas y puede equiparse con un backplane pasivo compatible con PC-bus.
2. Placa trasera pasiva La ranura de la placa trasera pasiva se compone de múltiples ranuras de bus SA y PC. El número y la posición de las ranuras ISA o PC deben seleccionarse de acuerdo con los requisitos. El tablero es un diseño de cuatro-capas con dos capas en el centro. Dividido en la capa de tierra y la capa de potencia, este método de diseño puede reducir la interferencia mutua de las luces lógicas en la placa y reducir la impedancia de la fuente de alimentación. El backplane se puede insertar en tableros de semillas, incluidas tarjetas de CPU, tarjetas de rendimiento, tarjetas de control, tarjetas O, etc.
3. La fuente de alimentación industrial es una fuente de alimentación de conmutación AT, y el equilibrio y el tiempo de funcionamiento sin obstáculos alcanza las 250,000 horas.
4. CPU card There are many kinds of CPU cards in PC, which can be divided into long cards and half-length cards according to the size, and the processor can be divided into 386, 486, 586, Pl, PIII motherboards according to the size, users can choose according to their own needs. . Its main features are: working temperature 0-60 degree : equipped with a "watchdog" timer: low power consumption, 5V25A when very large.
5. Otros accesorios Otros accesorios de la PC son básicamente compatibles con la PC, principalmente CPU, memoria, tarjeta gráfica, disco duro, unidad de disquete, teclado, mouse, CD-ROM, pantalla, etc. Los fabricantes nacionales de tabletas industriales incluyen EVOC, North China Industrial Control, Advantech y Ailesi. La tablet PC industrial extranjera Siemens es muy-conocida. La funda para tableta industrial mide 19 pulgadas de largo y 4U de alto.
6. Suitable for the platform At present, IPC has been widely used in all aspects of industry and people's life. For example: control the scene, road and bridge tolls, medical treatment, environmental protection, communication, intelligent traffic monitoring, voice, queuing machine, POS, CNC machine tools, fuel dispenser, finance, petrochemical exploration, field portable, environmental protection, military industry, electricity, railway, highway, Aerospace, subway, etc.
Features of industrial tablet PC: Generally speaking, industrial tablet PC is a computer specially designed for the industrial site, and the industrial site generally has a violent touch, and the industrial site generally has a violent touch, with a lot of dust, and a high Electromagnetic field force disturbance and other characteristics, and the general factory is working continuously, that is, there is generally no rest in a year. Therefore, the industrial tablet computer must have the following characteristics compared with the general computer: the chassis adopts the steel structure, and has high anti-magnetic, dust-proof and anti-strike capabilities. There is a special bottom plate in the chassis, and there are PC and ISA slots on the bottom plate. There is a special power supply in the chassis, and the power supply has strong anti-interference ability. Requires the ability to work continuously for a long time. Generally, a standard chassis that is easy to install is used (4U standard chassis is more common). Note: Except for the above features, other foundations are similar. In addition, because of the above professional characteristics, industrial tablet computers of the same grade are more expensive than the general ones, but generally not much different.
Compared with general-purpose computers, the main characteristics of industrial tablet computers are as follows: high reliability. Industrial tablet PCs are often used to control the continuous manufacturing process. During the operation period, no downtime inspection is allowed, and the occurrence of obstacles will cause quality problems and even manufacturing problems. Therefore, industrial tablet PCs are required to have high reliability, low failure rate and short after-sales time. Timeliness is good. The industrial tablet computer must timely control the changes of various parameters of the tool in order to control and monitor the manufacturing process in time. When errors or obstacles are found in the process parameters, an alarm and punishment can be issued in a timely manner. Usually industrial tablet PCs are equipped with real-time multi-task operating system and infix system. Situational compliance.
Due to the insidious environment of the industrial site, industrial tablet PCs are required to have strong environmental adaptability, such as high requirements for temperature/humidity changes: with the ability to prevent dust, corrosion, and shock from being touched: with good electromagnetic compatibility and high Anti-interference capability and high common mode suppression capability. Rich input and output templates. The industrial tablet computer is quite a set of process instruments, dealing with various lights, and requires rich multi-function input and output supporting templates, such as analog, digital, pulse and other input and output templates. The system has good extension and openness. The extended nature of the system is beneficial to the improvement of the automation level of the factory and the continuous expansion of the control range. Adopt an open system layout to facilitate system extension, software upgrade and exchange. Master software package is powerful, with convenient interpersonal interaction, rich screen, good timeliness and other functions: with system configuration and system production function: with timely and experienced trend record and actual function: with timely and experienced trend record and performance function : It has the functions of real-time alarm and accident recall; it has rich control algorithm. The system communication function is strong, and the industrial control system is generally required to be able to form a large-scale computer control system with remote communication function. In order to meet the timeliness requirements, the communication page speed of the industrial tablet computer should be high, and it is in line with foreign standard communication protocols. redundancy.
En lugares donde la confiabilidad es alta, las tabletas industriales requieren sistemas redundantes y -de trabajo de máquina dual, incluidas estaciones de control{1} duales, estaciones de operación{2} duales, comunicación de red- dual , sistemas de fuente de alimentación dual, fuentes de alimentación duales, etc., con funciones de conmutación de máquina dual-, software de monitoreo de máquina dual-, etc., para garantizar que el sistema nunca interrumpa el trabajo.
