摘要
PLC被广泛应用于工业自动化控制中,而这些设备常常需要对用户使用权限或系统功能进行分级授权管理,本文针对现有方案中存在的用户权限分级过于简单、设备功能模块管理维护不便等问题,提出了一种PLC与HMI组合编程的设备分级授权控制方案,并给出了具体应用实例。
PLC is widely applied in the industrial automation control, but these equipments are frequently requiring the entitlements management to the access of user or the system function. This essay puts forward one scheme for the equipment entitlements manage- ment control of PLC and HMI combination programming and presents some specific application examples by analyzing some problems which are simple ness of user’s entitlements management and inconvenience of equipment function module management maintenance.
出处
《微计算机信息》
北大核心
2007年第19期54-56,共3页
Control & Automation
基金
江西省科技攻关项目:嵌入式系统与USB接口的水位监测仪(2006KJ233)
关键词
PLC
HMI
权限管理
PLC, HMI, Entitlements Management
