发明授权
- 专利标题: Process communication link
- 专利标题(中): 过程通信链接
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申请号: US54201申请日: 1979-07-02
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公开(公告)号: US4271505A公开(公告)日: 1981-06-02
- 发明人: Robert Menot , Robert E. Willard , Paul D. Griem , Guy E. Devine
- 申请人: Robert Menot , Robert E. Willard , Paul D. Griem , Guy E. Devine
- 申请人地址: MA Foxboro
- 专利权人: The Foxboro Company
- 当前专利权人: The Foxboro Company
- 当前专利权人地址: MA Foxboro
- 主分类号: G06F13/37
- IPC分类号: G06F13/37 ; G06F13/42 ; H04J3/24 ; H04J6/00
摘要:
A distributed, electronic process control system is disclosed having a plurality of remotely located stations interacting to control a complex industrial process. The stations communicate via a process communication link which supports secure, multi-master communication. The link provides a transparent medium of exchange for the secure transfer of process status and control information among the stations, such that each station may initiate and control system communication for a predetermined time period.
公开/授权文献
- USD377995S Cigarette lighter 公开/授权日:1997-02-11