Patent ID: 8762528
Filing Date: 2014-06-24
Classification: H04L,Y04S

Abstract:
1. A method comprising: receiving, by a gateway device comprising one or more computers, a message output by an external system for communication to a Foundation Fieldbus linking device, wherein the linking device is identified by a virtual address, wherein the virtual address represents a plurality of redundant linking devices; determining, by the gateway device, whether the message comprises a command for a write operation to write data to the linking device or to a Foundation Fieldbus device connected to the linking device, wherein a header of the message is evaluated to determine whether the message includes the command to write data; and directing, by the gateway device if the gateway device determined that the message does not include the command to write data, communication of the message to the linking device; or generating, by the gateway device if the gateway device determined that the message includes the command to write data, an exception for preventing the write operation.