The characteristics of abundant function of PLC in what place

The function of PLC is very rich. This major and it has the rich command system of processing information and store information related to the internal components. Its instruction up to dozens, hundreds, can deal with all kinds of logic, also can undertake various types of data operation. Every ordinary computers can do, it also can do. Its internal components, namely the data in memory storage area, a wide range of big capacity. I/O relay, can be used to store information into and out of the point, less dozens, hundreds, more can reach thousands, tens of thousands, even tens of thousands of 10. This means that it can be so much of I/O point into the information transformation, this scale control. Intermediate relay, or its internal various relay, more. A memory bits can be used as an intermediate relay, how much! It is many counter, timer, relay circuit. Small box or module, its internal timer, counter, can reach hundreds, thousands. This is because as long as a word in memory, plus some flags, can become a timer, counter, so so much. And these components can also be set to lose electricity keep, or losing electricity don't keep, namely be reset after power up. In order to meet different application requirements. The relay parts also hard to do. Its data store can also be used to store large amounts of data, hundreds, thousands, tens of thousands of words of information can be saved, and is not lost after power off. PLC and rich external devices, can establish friendly man-machine interface, for information exchange. Can be put into application, into the data, can read the program, read the data. And when reading and writing in the illustrated on the picture. After the data read, can dump, can print. Data into type, can read card into, and so on. PLC also has a communication interface, can link with the computer or network, exchange information with the computer. Itself can also be connected to the Internet, to form a single machine can have more and more widely the control system. PLC controller has strong self-checking function, can be carried out since the diagnosis. The result can be automatically recorded. This maintenance increased transparency, for it provides a convenient. Rich functionality for PLC is widely used to provide the possible; At the same time, also for industrial automation, remote and control of intelligent created the conditions. Rich set of functions in one, like PLC was no other electrical controller; More of a traditional relay control circuit.
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