PLC programmable logic manipulator: It is mainly composed of CPU module, input module, output module and programming equipment.
DCS distributed control system: It is mainly a multi-level computer system composed of process control level and process monitoring level with communication network as the link, which summarizes 4C technologies such as computer (Computer), communication (Communication), display (CRT) and control (Control).
FCS fieldbus control system: FCS is developed from DCS and PLC, and has the characteristics of DCS and PLC. In many ways, it follows the mature technology of DCS/PLC. In the human-machine interface operation station, programming and configuration methods, hot standby redundancy ideas and methods, remote I/O, field transmitters and valve positioners and other appearance of two-wire power supply, substantial safety and explosion-proof, etc. And beyond the framework of DCS/PLC. FCS is taking the digitalization, intelligence and networking of field devices one step further.
To connect field intelligent devices and automation systems, it should be open, interoperable, intelligent and functional autonomy of field devices, highly sloppy, and highly adaptable to the field environment. It introduces the concept of network communication and management to the field of industrial control. The fieldbus control system is currently a hot spot of automation technology, and has attracted more and more attention from automation equipment manufacturers and users at home and abroad.
The difference between FCS and DCS is that DCS mostly imitates the digital hybrid system, adopts a closed communication protocol, and has a multi-level hierarchical network structure. FCS is a step-by-step network automation system, which uses standard communication protocols and is a loose control structure. Therefore, compared with DCS, FCS has better functions, higher accuracy, lower bit error rate, simple configuration, standardized structure and function, and is convenient for installation, operation and maintenance.
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EVOC's new generation of special computers debuted
As one of the core equipment of intelligent manufacturing, special computers have seen some new upgrades and changes in product technology, services and industrial development, and their role and tasks in the intelligent era have become more and more important.
In the face of all kinds of new ...
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The impact of video memory on the graphics card of the industrial computer - EVOC
Video memory has a great impact on the function of the graphics card, the larger the storage capacity, the higher the resolution and color number that can be displayed, and the better the display effect. So, what is the impact of video memory on the graphics card of the industrial computer?
One. The capacity of the video memory determines ...
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Whether the industrial computer power supply and the general power supply can be used with each other - EVOC
The power supply of the industrial computer can be used universally with the general power supply, but it is better to add a UPS power supply when it is used.
Industrial Personal Computer (IPC) is an industrial control accounting machine, which is a kind of bus structure, ...
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What factors should be considered for embedded industrial computer customization - EVOC
With the development of a new generation of information technology such as artificial intelligence, big data, and the Internet of Things, the industrial control system has begun to develop in the direction of intelligence, networking, and digitalization. Embedded industrial computer is a major development in recent years.
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Compared with traditional computers, the characteristics of industrial computers - EVOC
Compared with traditional PC computers, industrial computers are more used in harsh environments, so industrial computers have more and more stringent requirements in terms of easy maintenance, heat dissipation, dustproof, product cycle, size, etc., therefore, it has created the unique characteristics of industrial computers.
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Advantages of modular design of embedded industrial computers - EVOC
Modular planning of embedded industrial computers refers to the planning of different application modules according to different application requirements. The modules of the different standards are linked together in a uniform interface approach to meet the needs of different occupations.
In the face of a variety of application needs, IPC manufacturers can provide a variety of ...
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EVOC MEC-5071 in transportation
First, the system overview
Traffic electronic police is a systematic project integrating traffic management, command and dispatch, information collection, data sharing, and channel exchange, including integrated command system, network communication system, geographic information system, traffic signal control system, monitoring system, police car...
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The difference between parallel port and serial port of industrial computer
Parallel interface, referred to as parallel port. The parallel port of the industrial computer uses a 25-pin D-connector. The so-called "parallel" means that 8-bit data is transmitted together through parallel lines, so that the data transmission speed is greatly improved, but the length of the parallel transmission line is limited, and due to the increase in length, the disturbance will increase.
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Industrial switch fault type - EVOC
First, the power supply problem
Due to the unstable external power supply, the aging of the power supply line or lightning strikes, etc., the power supply is damaged or the fan stops, resulting in abnormal operation. Perhaps damage to other parts of the machine due to the power supply will cause problems in the AC machine.
If the delivery ...
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Causes and solutions for slow startup of industrial computers
The environment of the industrial site is chaotic, and the industrial computer is faced with factors such as oscillation, dust, and high electromagnetic field disturbance during operation, and the industrial site often continues to operate for a long time, which has high requirements for the stability of the industrial computer. In the process of using the industrial computer, there are often such and such problems, requiring the industrial computer to ...
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Common faults and solutions of industrial computer - EVOC
With the continuous development of industrial computer technology, industrial computers have been widely used in industrial production. Therefore, we need to understand the causes of industrial computer failures and how to deal with them. Below, we give corresponding solutions to the common faults of industrial computers.
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Method for judging that the industrial computer needs to be reinstalled on the system - EVOC
During the use of the industrial computer, the user mistakenly deleted the system file, resulting in an abnormal function of the industrial computer; The industrial computer was invaded by a virus Trojan horse, which led to problems in the system; Some fault prompts frequently pop up on the desktop, and the industrial computer needs to be reinstalled in the system. Strictly speaking, the industrial computer ...
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The difference between the design of industrial computer and tower server - EVOC
An industrial computer is an electronic computer used in an industrial control system. It is a type of electronic computer. The critical structure and principles are the same as those of a tower server, but the planning scheme is very different. So what's the difference between the two?
The main box does not ...
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The selection element of the industrial computer - EVOC
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 size is generally 8-21 inches, and the design of wide temperature and wide pressure is selected, which can be flexibly used in harsh environments such as temperature and application space, including vehicle-mounted, self-service terminals, etc.
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EVOC IPC VoIP gateway solution
First, the system overview
VoIP gateways use existing IP data networks or the Internet to provide guessable, real-time, long-distance quality voice and fax communications. In this use case, the VoIP gateway provides a reasonable business communication for small and medium-sized business planning.
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Key points of industrial computer fault judgment - EVOC
1. Device operation system
First: Review the settings in the CMOS and restore to factory settings if needed. Secondly: pay attention to the parameters of the hard disk, the temperature of the CPU, etc. Observe whether the information displayed during the self-test of the industrial computer is consistent with the actual hardware equipment.
2. Device software
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EVOC PowerPC Core Board System
1. Function**, technology**. The MPC8377 processor used in the system has a frequency of 667MHz, which can well support the gigabit network and avoid the problem that the gigabit network function cannot be played due to the application of low-performance processors and gigabit networks. The application of Gigabit network has also greatly improved the ...
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Industrial computer start-up alarm, listen to the sound analysis of the alarm - EVOC
The first type: the BIOS of the Award
1 short - the system starts normally
2 Short - Conventional Fault
1 long and 1 short – RAM or motherboard makes mistakes
1 long and 2 short - the fault of the display or graphics card
1 long and 3 short - the keyboard controller is at fault
1 Long 9 Short - Motherboard Fla ...
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What are the characteristics of CPCI industrial computer-EVOC
Compact PCI is transformed on the basis of PCI technology, and has the characteristics of openness, high reliability, and hot-swappability. Compact PCI industrial computer can build a high-availability system, suitable for communications, network, finance, rail transit, medical equipment, self-provoking...
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Industrial Motherboard Troubleshooting - EVOC
1. Investigation and Review
The way to check is to check whether the appearance of the industrial motherboard and the parts are abnormal.
When overhauling the industrial motherboard, the first thing to do is to investigate whether the capacitors on the industrial motherboard are bulging, leaking or severely damaged; The resistor and capacitor pins are ...
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