公开(公告)号：US20080123522A1

公开(公告)日：2008-05-29

申请号：US11460795

申请日：2006-07-28

申请人： David Charles Elliott ,  Catherine Mary Hewlett Elliott ,  Carson Ward Lankford ,  Dean Stewart Talley

发明人： David Charles Elliott ,  Catherine Mary Hewlett Elliott ,  Carson Ward Lankford ,  Dean Stewart Talley

IPC分类号： G08C15/00

CPC分类号： H04L12/403 ,  G06F11/202 ,  H04L12/40202 ,  H04L2012/40221 ,  H04L2012/4026

摘要： A method for providing a hot standby master on a fieldbus includes communicatively coupling a redundancy coupler to a fieldbus having at least one slave device communicatively coupled thereto. The method further includes communicatively coupling a plurality of redundant fieldbus master controllers (MCs) to the coupler and utilizing the coupler to determine which of the plurality of redundant MCs is active. Also included in the method is using the coupler to receive communications from the active MC and to forward the received communications from the active MC to the one or more slave devices via the fieldbus. In addition, the coupler is used to receive communications from the other redundant MCs and to prevent the received communications from the redundant MCs from being forwarded to the one or more slave devices.

摘要翻译： 用于在现场总线上提供热备用主设备的方法包括将冗余耦合器通信地耦合到具有至少一个通信耦合到其上的从设备的现场总线。 该方法还包括将多个冗余现场总线主控制器（MC）通信地耦合到耦合器并利用耦合器来确定多个冗余MC中的哪一个是活动的。 该方法中还包括使用耦合器从主动MC接收通信，并通过现场总线将所接收的通信从主动MC转发到一个或多个从设备。 此外，耦合器用于从其他冗余MC接收通信，并且防止来自冗余MC的接收到的通信被转发到一个或多个从设备。