Siemens S7 series PLC is small in size, fast in speed and standardized, with network communication capabilities, stronger functions and high reliability. S7 series PLC products can be divided into micro PLCs (such as S7-200), PLCs with small-scale performance requirements (such as S7-300), and PLCs with medium and high performance requirements (such as S7-400). SIMATIC S7-200 PLC S7-200 PLC is an ultra-miniature PLC, which is suitable for automatic detection, monitoring and control in various industries and various occasions.
The powerful functions of the S7-200 PLC make it possible to realize complex control functions regardless of single machine operation or network connection. S7-200PLC can provide 4 different basic models and 8 kinds of CPUs to choose from. SIMATIC S7-400 PLC S7-400 PLC is a programmable controller for the mid-to-high-end performance range.
The S7-400 PLC adopts a modular fanless design, which is reliable and durable. At the same time, it can use multiple levels of CPUs (functions are gradually upgraded), and is equipped with a variety of universal function templates, which allows users to combine them into different dedicated system.