PROFIBUS-BASED DATA ACQUISITION SYSTEM OF TEXTILE EQUIPMENTS ABSTRACT At present, in the process of domestic textile production, equipments with individual control system, traditional method of production and management are widely adopting, which greatly restricted the development of textile enterprises information management. In the system, fieldbus has been used in the traditional textile production, the mass data has been acquisition and disposed real-timely, the factory's production efficiency and the management performance have enhanced comprehensively, a better management of information technology will be achieved in the traditional industry. The key issue to this system is a single device networking. S7-200 PLC for the use of control equipments as a DP slave connected to the network, with using the EM277 PROFIBUS DP expansion module; To RS-485 communication interface configuration of control devices, Choosing to use RS485/DP protocol conversion module connected to the DP network. At last, by the DP master via Ethernet communication module (CP343-1) connected to the Ethernet. Superior machin