Recently, three products from Shanghai Automation Instrument Co., Ltd., including UTD3010G intelligent electric float level transmitter, BWQ intelligent temperature transmitter, and SPP type intelligent electrical valve positioner, passed the certification test organized by PROFIBUS; The 3151 series intelligent pressure/differential pressure transmitter, which complies with the FF H1 protocol, has passed the FF H1 protocol stack consistency certification test of the IITB testing laboratory in Karlsruhe, Germany (FF Foundation Laboratory) and the interoperability certification test of the FF Foundation Austin testing laboratory in the United States. This marks the comprehensive establishment of the PROFIBUS and FF fieldbus development and testing platform by Ziyi Corporation. On the basis of this development platform, not only can various fieldbus instruments that comply with PROFIBUS and FF specifications be developed, but also various device descriptions required for fieldbus device system integration can be developed, including EDDL based device EDD and FDT/DTM based device DTM, providing users with rich technical choices for device management.