When faced with a brand new PLC, do you feel like you are confronting a silent black box? Once the program is loaded, it seems to act according to your will, which appears magical. But do you know what kind of endless “scan-decision-execute” cycle is taking place inside the moment it is powered on? Many … Read more
Previously, I introduced the concept of dual coils due to the PLC scanning cycle. Regarding this scanning cycle, I have found that many friends, when starting to write programs, often see no issues with the program, and the PLC shows no errors or alarms, yet the results are incorrect. This is likely due to the … Read more
In the world of industrial automation, from the precise assembly of automotive production lines to the efficient sorting in smart warehousing, and to the safe temperature control in chemical workshops, all rely on the “intelligent brain” of the PLC (Programmable Logic Controller) operating silently in the background. One of the core mechanisms that supports this … Read more
Hello everyone, I am Awei from Mako Control. Some fans have asked me to talk about the scanning cycle of PLCs. The scanning cycle is not as simple as most people think, which involves writing outputs, reading inputs, and executing programs. Most people overlook the core logic hidden behind this, which often leads to writing … Read more