Introduction - If you have any usage issues, please Google them yourself
In modern industrial production equipment, there are a large number of digital and analog control devices, such as motor starting stop, solenoid valve opening and closing, product count, temperature, pressure, flow and control settings such as, industrial site automatic control of these problems, the use of programmable logic controller (PC) to solve the automatic control issue has become one of the most effective tool, this article describes the design of PC control system should pay attention to.