PLC

In the old command relay circuit industry, industrial processors called PLCs or programmable logic controllers have given way, which is a kind of brain and decision center of most industrial processes.

PLC literally means intelligent programmable controller. In the industry, each manufacturer designs a specific program for its PLCs and presents it to the market, which is specifically used for PLCs of the same brand.

PLCs are used in control cases as well as in industrial environments because of their simplicity and programmability. It is also possible to change the control system by changing the control program software; The mentioned cases, as well as the smaller dimensions of the control system, faster troubleshooting, less downtime, the ability to run more complex programs, the ability to exchange information with other systems, etc., made the use of this digital controller instead of relay circuits to Speed ​​done in the industry.

The correct choice of PLC is one of the things that must be considered according to a series of parameters and technical specifications.

A PLC or a controller consists of two basic parts: the processor or central processing unit (CPU) and the input and output interface. Or its main processor as well as the amount of main and external memory.