发明授权
US07032029B1 Method and apparatus for an active standby control system on a network
有权
网络上主动备用控制系统的方法和装置
- 专利标题: Method and apparatus for an active standby control system on a network
- 专利标题(中): 网络上主动备用控制系统的方法和装置
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申请号: US09612636申请日: 2000-07-07
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公开(公告)号: US07032029B1公开(公告)日: 2006-04-18
- 发明人: Allan Tanzman , Dennis J. W. Dube , Stephen Mooney
- 申请人: Allan Tanzman , Dennis J. W. Dube , Stephen Mooney
- 申请人地址: US MA North Andover
- 专利权人: Schneider Automation Inc.
- 当前专利权人: Schneider Automation Inc.
- 当前专利权人地址: US MA North Andover
- 主分类号: G06F15/16
- IPC分类号: G06F15/16 ; G06F3/00 ; G06F11/00 ; G05B9/02
摘要:
A method and apparatus for providing an active standby control system comprising the steps of providing a first and second programmable logic controller (PLC), each controller having an operating state. Each controller further including a network module board operably connected to a network; a control unit, a remote I/O head; and, a hot standby module, each hot standby module is operably connected together. Operably connecting each programmable logic controller to a network. Assigning a network address identifier, i.e., Internet Protocol or Media Access Control address, to each programmable logic controller and sensing the operating state of each programmable logic controller. The network address identifier of each programmable logic controller is determined by the operating state of each respective programmable logic controller. The present invention is also directed to an apparatus for communication with at least one device which resides on a standard communications network using a standard communications protocol. The apparatus has a scanner for scanning the device, a device scan table for storing data relating to the device, and a standard communications interface for interfacing between the device scanner and the standard communications network using the standard communication protocol.
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