Application of PROFINET-based S7-400 and GXPI Independent Modules in Spray System
The 6#blast furnace coal injection system at Fujian San Gang Steel uses the Siemens S7-400 PLC system with PROFINET communication,which controls all the equipment in the injection system to automatically perform actions according to conditions,achieving full automatic switching of the coal storage tanks.The development and application of this project play a crucial role in ensuring the efficient operation of the coal injection system.