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公开(公告)号:US07024463B1
公开(公告)日:2006-04-04
申请号:US10110457
申请日:2000-10-13
申请人: Shigeru Hitomi , Jintaro Deki , Toshiaki Sasamori
发明人: Shigeru Hitomi , Jintaro Deki , Toshiaki Sasamori
CPC分类号: G05B19/052 , G05B2219/13125 , G05B2219/15118 , H04L67/1097
摘要: A logical name of shared data is defined. A network system comprises a communication portion for exchanges of data with other control apparatuses; a link memory (15) for storing data shared through the network; an indirect reference table (16) for storing logical names and the pointers used to access data stored in the link memory; and a database (17) of variables in which logical names are associated with memory addresses in the indirect reference table storing the pointers of the logical names. A control execution portion (18) accesses the link memory through the indirect reference table based on a logical name so that there is no need to know the specific memory location. Specifically, the user program contains logical names and no addresses (pointers) storing data.
摘要翻译: 定义共享数据的逻辑名称。 网络系统包括用于与其他控制装置进行数据交换的通信部分; 用于存储通过网络共享的数据的链接存储器(15) 用于存储逻辑名称和用于访问存储在链接存储器中的数据的指针的间接参考表(16); 以及数据库(17),其中逻辑名称与存储逻辑名称的指针的间接引用表中的存储器地址相关联。 控制执行部分(18)基于逻辑名称通过间接参考表访问链接存储器,使得不需要知道特定存储器位置。 具体来说,用户程序包含逻辑名,没有存储数据的地址(指针)。