DeltaV Virtual Controller and I/O Simulation provides an easy, cost-effective way to create your configuration and simulate controller and I/O functionality for system development, training and testing. With virtual controllers and I/O Card Simulation, you can simulate process signals from a host computer and thoroughly test control strategies, configuration, operator graphics and I/O assignments prior to implementing online. Simulation has the advantage of reduced hardware staging, which makes it easy to add and remove controllers as needed.