【摘要】 IEC61499是即将颁布的如何使用功能块进行分布式工业过程测控系统(IPMCS)设计的国际标准。描述了这一标准的历史由来、基本概念、现状及发展趋势。其中重点论述了功能块的基本类型、表达形式及其状态机器设计等相关问题,并给出了应用实例。更多还原

【Abstract】 IEC 61499 is a forthcoming international standard about the application of function blocks in Distributed Industrial_Process Measurement and Control Systems(IPMCS).The history,basic concepts,current status and future devel_opment of the standard are described.The basic types,expressive forms and some correlative problems such as state machine design are emphatically discussed,and an application instance is given.更多还原