MCS 51 microcontrollers are typically used for high-speed event control systems.
MCS51单片机典型的应用是高速事件控制系统。
Existing design methods for discrete event control system (DECS) implemented with programmable logical controller (PLC) have disadvantages in efficiency and ease of use.
对于采用可编程逻辑控制器(PLC)实现的复杂离散事件控制系统(DECS)，现有设计方法在效率和易用性等方面存在不足。
In order to exactly describe logic relations among objects of discrete event control systems and write programs, a rule-based language, logic rule Description language (LRDL) is put forward.
为了准确描述离散事件控制系统对象之间的逻辑关系和编写控制程序，提出了一种基于规则的语言——逻辑规则描述语言(LRDL)。
New elements exist for accept time event, control flow, object flow, flow final, accept event action, and interruptible region.
增加了用于接受时间事件（accept timeevent）、控制流程（controlflow）、对象流（object flow）、流终端（flowfinal）、接受事件动作（accept event action）以及可中断的区域（interruptible region）的新元素。
New elements exist for accept time event, control flow, object flow, flow final, accept event action, and interruptible region.
增加了用于接受时间事件（accept timeevent）、控制流程（controlflow）、对象流（object flow）、流终端（flowfinal）、接受事件动作（accept event action）以及可中断的区域（interruptible region）的新元素。
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