I. Characteristics of Industrial Control Computers
The products and technologies of the industrial control industry are very specialized, providing stable, reliable, embedded, and intelligent industrial computers for various other industries. Currently, IPCs are widely used in communications, industrial control systems, road and bridge toll collection, healthcare, environmental protection, and all aspects of people's lives.
The characteristics of industrial control computers include:
1. Reliability: Industrial PCs are capable of withstanding dust, smoke, high/low temperatures, humidity, vibration, corrosion, and offer rapid diagnostics and maintainability. Their MTTR is typically 5 minutes, and MTTF is over 100,000 hours, while the MTTF of ordinary PCs is only 10,000 to 15,000 hours.
2. Real-time performance: The industrial control computer performs real-time online monitoring and control of the industrial production process, responds quickly to changes in working conditions, collects and adjusts data in a timely manner, and automatically resets in case of danger to ensure the normal operation of the system.
3. Expandability: Due to its baseboard + CPU card structure, the industrial control computer has strong input and output functions and can be expanded with up to 20 cards. It can be connected to various peripherals and cards in the industrial field, such as lane controllers, video monitoring systems, and vehicle detectors, to complete various tasks.
4. Software and hardware compatibility: It can simultaneously utilize ISA, PCI and PICMG resources and support various operating systems, multiple programming languages, and multi-tasking operating systems, making full use of the software and hardware resources accumulated by commercial PCs.
5. High reliability. Industrial control computers are often used to control continuous production processes, and downtime for maintenance is not allowed during operation. A malfunction could lead to quality accidents or even production accidents. Therefore, industrial control computers are required to have high reliability, low failure rate, and short maintenance time.
6. Excellent real-time performance. Industrial control computers must respond to changes in various parameters of the controlled object in real time in order to perform real-time control and monitoring of the production process. When deviations or faults occur in process parameters, they can respond in real time and provide alarms and handling. Industrial control computers are typically equipped with a real-time multi-tasking operating system and an interrupt system.
7. The system has strong communication capabilities. Generally, the industrial control computer is required to form a large computer control system with remote communication capabilities. To meet real-time requirements, the communication network speed of the industrial control computer must be high and conform to international standard communication protocols.
8. Redundancy. In applications with high reliability requirements, dual-machine operation and redundant systems are required to ensure long-term uninterrupted system operation.
II. How to resolve the issue of industrial control motherboards shutting down or restarting intermittently?
Sometimes we encounter situations where the system keeps shutting down or restarting at irregular intervals. There are many possible causes for this problem, requiring a step-by-step troubleshooting process. So how do we troubleshoot? Let Lianzhitongda explain it to you:
First, we should consider the power supply, as it is the foundation for all devices to work. Insufficient power or excessive power harmonics may cause the system to crash or restart intermittently. In such cases, the power supply can be replaced.
If the CPU temperature is too high, the motherboard has the function of detecting the temperature and protecting the CPU. Therefore, it will restart if the temperature is too high. You can clean the dust or disassemble and reassemble the CPU cooling system.
Check if the capacitors on the motherboard are bubbling or cracked. When capacitors are subjected to excessive voltage or prolonged high temperatures, they may bubble or leak liquid. At this time, the capacitance of the capacitor decreases or it loses its capacitance. The capacitor will lose its filtering function, increasing the AC component in the current supplied to the load, causing instability in the CPU, memory, and related circuit boards, which manifests as frequent crashes or system instability.
A damaged memory module is also a possibility. Sometimes, a damaged component or chip on the memory module may not affect the computer's self-test and boot process, but after a period of time, it may cause the computer to restart due to excessive heat or other reasons. In this case, the memory module should be checked and replaced if necessary.
In addition, virus attacks can also cause this, so we should always keep our systems clean and virus-free.
