How to check the problem of the industrial control motherboard? There are several types of self-starting functions of the industrial control motherboard

For a long time, industrial control motherboards have been one of the focuses of everyone's attention. Therefore, for everyone's interests, the editor will bring you the relevant introduction of industrial control motherboards. For details, please refer to the following.

1. How to check the problem of industrial control motherboard

To check the problem of the industrial control motherboard, you can refer to the following 5 steps:

First, check whether there is foreign matter falling between the components of the industrial control motherboard. If a conductive object that is accidentally dropped gets stuck between the components of the industrial control motherboard when disassembling the chassis, it may cause a "protective fault". In addition, check whether the small copper column used to support the industrial control motherboard is not installed between the industrial control motherboard and the chassis bottom plate; whether the industrial control motherboard is improperly installed or the chassis is deformed, so that the industrial control motherboard is in direct contact with the chassis, so that the power supply with short-circuit protection function automatically Cut off the power supply.

Second, check the battery of the industrial control motherboard: If the hard disk cannot be found correctly when the computer is turned on, the system time is incorrect after the computer is turned on, and the CMOS settings cannot be saved, you can first check the CMOS jumper of the industrial control motherboard, change the jumper to the "NORMAL" option, and then reset. If it is not the CMOS jumper error, it is likely to be caused by the damage to the battery of the industrial control motherboard or insufficient battery voltage. Please try another industrial control motherboard battery.

Third, check the heat dissipation effect of the north bridge chip of the industrial control motherboard: some brand-name industrial control motherboards omit the heat sink on the north bridge chip, which may cause poor heat dissipation of the chip and cause the system to crash after running for a period of time. In such a situation, you can install a self-made heat sink, or add a case fan with good heat dissipation effect.

Fourth, check the capacitors on the industrial control motherboard: the aluminum electrolytic capacitors on the industrial control motherboard use electrolyte inside. Due to time, temperature, quality and other reasons, it will cause "aging" phenomenon, which will lead to the anti-interference index of the industrial control motherboard. The drop affects the normal operation of the machine. We can buy capacitors with the same capacity as "aging". After preparing the electric soldering iron, solder wire, and rosin, replace the "aging" one.

Fifth, carefully check whether the plugs and sockets of the industrial control motherboard are skewed, whether the resistance and capacitor pins touch, whether the surface is burnt, whether the chip surface is cracked, and whether the copper foil on the industrial control motherboard is blown; touch the surface of some chips, if If it is abnormally hot, you can try another chip; if you have any doubts, use a multimeter to measure it.

2. Classification of the auto-start function of the industrial control motherboard when it is powered on

Through the above introduction, you must have understood how to check the problem of industrial control motherboard. In this part, we mainly take a look at the classification of the power-on auto-start function of the industrial control motherboard.

As we all know, industrial control motherboards have the function of power-on self-starting, but non-professionals may not know that there are several self-starting methods. Today, Lianzhi Tongda will explain it in detail for everyone. Let’s take a look together:

The power-on auto-start function of industrial control motherboard or industrial control computer is roughly divided into the following types

1. Dedicated circuit board design: Add a circuit board or device to the front of the industrial control motherboard or industrial control computer. After detecting the power supply, give the industrial control computer a power-on signal to force the industrial control motherboard or industrial control computer to start up. This method can add some auxiliary functions, such as pre-heating, pre-checking, pre-starting the industrial control motherboard or the peripherals of the industrial control computer, etc. It is highly reliable, but this method needs to take up more space, the installation is slightly complicated, and the cost higher.

2. The second method is to add a separate chip and circuit from the industrial control motherboard or the industrial control computer motherboard. When the chip detects that there is a power input, it will force the industrial control motherboard or the industrial control computer to start. The cost of this function is low and moderate, and it can be integrated with the industrial control motherboard to save space. The industrial control motherboards and industrial control computers developed and produced by Zechuangweiye Technology generally adopt this method. This method is also very stable, and can add functions such as timing switch machine, time-based switch machine, etc.

3. The third method is the easiest. It is set through the BIOS (CMOS) option, but this method is relatively less stable. If the power supply is unstable, or the motherboard battery fails, the power-on auto-start function may fail. Reset or replace the motherboard battery.