【摘要】 中理工大学电信系（武汉４３００７４） ［摘要］本文主要介绍了集散控制系统、智能Ｉ／Ｏ的特点和在国内外工业领域的应用状况，介绍了现场总线技术、特点及应用，并对现场总线系统的未来进行了展望。更多还原

【Abstract】 The paper introduces the characteristics of distributed control system and intelligent input/output instrument and the application status in the domestic and foreign industry field .And then the application and characteristics of the field bus are described. At last, the view of the developing trend of the field bus is given.更多还原