(67e) Integration of Complex Sequences Using Delta V

Companies have often struggled with the implementation of complex sequences involving tight integration of the SIS and DCS. Implementation often proved difficult due to the independent nature of SIS, which is problematic when communication between the SIS and DCS is important.

With the release of DeltaV SIS, those issues are no longer a concern. DeltaV SIS along with DeltaV presents options not available before.

For a very complex application like startup and shutdown of an oilsands gasification process, DeltaV DCS and DeltaV SIS are an excellent fit. With the State Transition Diagram function blocks now available with DeltaV SIS, and with the proper implementation methodology, implementation can be done in a logical, efficient manner. With PlantWeb integration, the creation of HMI displays as well as interaction with the highly complex DCS control are greatly simplified.

This paper describes the design issues for integration of the safety, control and operator functions in this new architecture. Technical issues such as the use of equipment (position transmitters, DVC's) and DCS/SIS interaction are discussed, as well as the importance of the implementation framework, which is the heart of the design.