Automation Distribution with S7-1200 Siemens Simatic PLC Controller

Automation has been widely used for a long time in many industries. It has been applied mostly in an assembly line and production line. The main point of this study is to design a completed automatic production line of selecting material to completely storage the final product on a shelf. There are four stations which process different task. Each station is controlled by S7-1200 CPU, which is programmed by Siemens TIA Portal software. When connecting these stations together by PROFINET, the switches from Siemens are used. As a result, these stations could be communicated in parallel as Start Topology. It means one station can send and receive data directly from all other stations. It is different from the master and slave system which is generally used by S7-300. Also, for the star topology, the signal from one station to the other station would be faster and more rapidly. The whole production line is tested and verified to work properly. Thus, Star Topology for PLC connection would be applicable in automation industrial to replace the old system. Keywords: Tia Portal, S7-300, S7-1200, STL, FBD, LAD, star topology, PROFINET