Application packages that support an OPC interface are compatible with the DeltaV Simulate environment. For example, you can use the HYSYS high-fidelity dynamic process simulation software with DeltaV Simulate for plant and control design as well as control checkout and operator training. The Mimic process simulation software supports control system checkout and operator training. These process simulation applications utilize the simulate capability of both DeltaV I/O blocks and fieldbus I/O blocks.