ABSTRACT
PROFIBUS is a Fieldbus international standard TYPE3 and the only national fieldbus standard of China that has been approved. PROFIBUS-DP is a low-cost communication protocol in high speed, and it is applied to a unit control system and distributed I/O. PROFIBUS-DPV1 is a kind of extended version. In the combination of fieldbus and industrial Ethernet to realize totally integrated automation (TIA) development, PROFIBUS-DP/DPV1 still plays a fundamental and core role.
