Field bus line technology is a new technology developed by instrumentation, computer technology and network technology in the field of control system and automation. Point digital communication is an open bus with a unified and open international standard ISO/OSI mode, which can form an open interconnection network of instruments from different manufacturers, with interoperability and interoperability, providing DCS control systems. Base. Through a variety of network transmission media, actuators with fieldbus communication can form an open fieldbus system, supporting Modbus, Profibus, FF and Hart.
