CONFIGURING REDUNDANCY IN A SUPERVISORY PROCESS CONTROL SYSTEM

摘要

A redundant host pair runtime arrangement is disclosed for a process control network environment. The environment includes a primary network through which process control information is transmitted. An active partner of a fail-over host pair operates on a first machine communicatively connected to the primary network, and the active partner hosts a set of executing application components. A standby partner of the fail-over host pair operates on a second machine communicatively connected to the primary network. The standby partner receives updates including engine synchronization data associated with the set of executing application components to facilitate taking over an active partner role in response to a fail-over event. The environment also includes a redundancy message channel, separate and distinct from the primary network. The redundancy message channel provides a communications path between the first machine and second machine facilitating passing the updates including engine synchronization data.