Talk about the role of PLC in the epidemic of new coronaviru
Due to the growing epidemic of new coronaviruses in the world, many countries are in a state of closure. As a Chinese, I am proud of China's courage. Raytheon Mountain Fire Mountain Hospital in China is a miracle.They should be mainly made of color steel tiles, with a steel frame as the base and concrete pouring as the foundation. No matter how great these two hospitals can play in this disaster, how much their construction has given us great confidence in the fight against the epidemic. Two hospitals of this scale can be established in such a short period of time. While lamenting the hard work and superb skills of the builders, we also have to admire China's current industrial strength. Not to mention that the hundreds of construction machines working at the construction site at the same time, that is, the plates that build the wards are actually an astronomical number. If it is produced by small manual workshops alone, not only can the output fail to keep up, but also the specifications and quality can hardly be guaranteed. Therefore, large-scale factory production is now particularly useful. But the question is also coming, how is the large-scale factory production going? Is there a dedicated worker in each production process or location? If this is really the case, then our country may be It has developed in vain for decades. Currently, automated industrial production is the truth. The PLC equipment is a magic weapon for automated production.
PLC is a relatively simple electronic computer. We know that the computer we are using is actually performing the judgment of "yes" and "no" when it is working. It is either black or white, and there are no ambiguous intermediate options. Of course, the computer's "yes" and "no" judgments are very diverse and systematic, so we will not repeat them here. And PLC is also a machine that performs logical judgment, so it is not wrong for you to think of it as a computer. After adopting this PLC device, you only need to transfer the desired effect command to it, and it will judge and process according to the continuous cycle of this command. In the process of logical judgment, it will give the instruction information to the input and output sensors connected to it, and then these sensors will perform the control of the node equipment. By the way, when we said the name of PLC, we also mentioned the word programmable. This is actually its soul function. We compare with the more common relay controller. The relay control device is the kind of device that can only execute the current command as long as you install it. There is basically no flexibility in operation. If the content of the control project changes, we can only dismantle this relay controller, and then reassemble according to the actual needs. This not only increases the cost of use, but also increases the possibility of equipment damage. If you consider the post-maintenance issues, it is really a big head.
Compared with relay controllers, PLC devices can be programmed to control content. In other words, it provides you with several control content options at the same time, and can be changed in real time. I believe that there is a huge value in it, I don't need to say more. It is precisely because of this characteristic of PLC that it is widely used in industrial projects such as steel, automobiles, and smelting. In the future construction process of industrial Internet, PLC equipment will play an increasingly important role. Now, like mobile phones, the volume of PLCs is also shrinking, but the functions are getting more and more abundant. PLC devices in the past generally only support two communication buses, namely serial bus and Ethernet bus. Now, as the CAN bus continues to mature, more and more PLC devices are also trying to add a CAN bus interface to themselves. After all, the fast data transmission speed, the long distance of data transmission, and the CAN bus with strong anti-interference ability cannot be rejected by ordinary people.
PLC is a relatively simple electronic computer. We know that the computer we are using is actually performing the judgment of "yes" and "no" when it is working. It is either black or white, and there are no ambiguous intermediate options. Of course, the computer's "yes" and "no" judgments are very diverse and systematic, so we will not repeat them here. And PLC is also a machine that performs logical judgment, so it is not wrong for you to think of it as a computer. After adopting this PLC device, you only need to transfer the desired effect command to it, and it will judge and process according to the continuous cycle of this command. In the process of logical judgment, it will give the instruction information to the input and output sensors connected to it, and then these sensors will perform the control of the node equipment. By the way, when we said the name of PLC, we also mentioned the word programmable. This is actually its soul function. We compare with the more common relay controller. The relay control device is the kind of device that can only execute the current command as long as you install it. There is basically no flexibility in operation. If the content of the control project changes, we can only dismantle this relay controller, and then reassemble according to the actual needs. This not only increases the cost of use, but also increases the possibility of equipment damage. If you consider the post-maintenance issues, it is really a big head.
Compared with relay controllers, PLC devices can be programmed to control content. In other words, it provides you with several control content options at the same time, and can be changed in real time. I believe that there is a huge value in it, I don't need to say more. It is precisely because of this characteristic of PLC that it is widely used in industrial projects such as steel, automobiles, and smelting. In the future construction process of industrial Internet, PLC equipment will play an increasingly important role. Now, like mobile phones, the volume of PLCs is also shrinking, but the functions are getting more and more abundant. PLC devices in the past generally only support two communication buses, namely serial bus and Ethernet bus. Now, as the CAN bus continues to mature, more and more PLC devices are also trying to add a CAN bus interface to themselves. After all, the fast data transmission speed, the long distance of data transmission, and the CAN bus with strong anti-interference ability cannot be rejected by ordinary people.
