An industrial control computer (ICC) is an industrial control computer that uses a bus architecture to monitor and control production processes, electromechanical equipment, and technological equipment. ICCCs possess essential computer characteristics such as a motherboard, hard drive, CPU, memory, peripherals and interfaces, operating system, control network and protocols, computing power, and a user-friendly human-machine interface. The products and technologies of the industrial control industry are highly specialized, belonging to the intermediate product category, providing stable, reliable, embedded, and intelligent industrial computers for other industries.
Five common industrial computer malfunctions
I. Electrical connection fault
Because the task involves adapting to various harsh working environments, a significant amount of dust or vibration is inevitably generated on-site. Prolonged vibration can cause certain components of the connector to loosen, leading to problems such as poor contact. These types of problems are difficult to diagnose and are usually easier to find at the user's site.
II. Software Fault
Incorrect application software settings, operating system malfunctions or corruption, and viruses are all likely to be causes of this type of failure.
III. Faults caused by the usage environment
Environmental factors include electromagnetic interference, unstable power supply, high or low ambient temperature, and even lightning strikes.
IV. Aging Failure
This refers to malfunctions caused by the aging of industrial control computers. However, with the upgrading and advancement of electronic technology, such malfunctions are becoming increasingly rare.
V. Human error
This mainly refers to obstacles caused by users' unfamiliarity with the production characteristics of industrial control computers and the use of incorrect methods.
Common Faults and Solutions for Industrial Control Computers
With the continuous development of industrial computer technology, industrial computers have been widely used in industrial production processes. Therefore, it is necessary to be familiar with the causes and troubleshooting methods of industrial computer malfunctions. Below, we provide corresponding solutions for common industrial computer malfunctions.
1. After powering on the industrial computer, the power supply works normally, but the motherboard does not respond at all.
First, remove the peripheral cards and connected devices to see if they can boot. If there is no response, remove the memory and see if there are any alarms. Then check if the CPU is working properly. Finally, replace the motherboard and check if it is working properly.
2. After powering on, the motherboard works normally, but the BIOS detects the keyboard and reports a keyboard error.
First, check if the keyboard lock is engaged and release it. If not, check if the connections between the motherboard and the backplane are correct, and if the keyboard and mouse connections are correct.
3. After powering on, the power indicator light on the base plate flashes briefly and then goes out, indicating that power cannot be supplied.
First, check inside the computer case for any foreign objects causing a short circuit. Second, check if the power cord is connected incorrectly, causing a short circuit to ground. Third, replace the power supply, motherboard, backplate, and other components.
4. After powering on, I hear the motherboard self-test beep, but the monitor displays nothing:
1. Check if the monitor is properly connected to the host; 2. Clear the CMOS (there may be an error in the settings) or replace the BIOS; 3. Replace the CPU board (or the motherboard with integrated graphics) or the monitor.
5. Industrial computer startup time is too long:
1. Run a disk defragmenter to eliminate fragmentation; 2. Disable startup items for system startup files; 3. Run a disk cleanup program to eliminate junk files; 4. Adjust network settings.
6. The memory self-test result after power-on does not match the actual memory capacity:
1. Check if the motherboard's video memory is shared with the motherboard's main memory. This will allocate a portion of the main memory as video memory. 2. Check if the main memory is a small-chip memory, because some older chips do not support large-chip memory, and only half of the capacity will be displayed after installation. 3. A very small number of motherboards use a special CPU that occupies part of the main memory as an instruction decoder for CPU instruction set conversion, thus causing the memory capacity to be mismatched.
7. The industrial computer does not respond when the power is turned on:
1. Check if the power socket is powered on and if the connection to the industrial computer is normal; 2. Check if the power supply fan spins after powering on and if the monitor is properly connected to the host; 3. Check if there is an alarm when powering on with the memory stick removed; 4. Replace the CPU or motherboard.
