Delta V Distributed Control System

I worked on the development of the Fisher Rosemount Delta V intelligent distributed control system.  This is a bus-based control system using intelligent devices to run control loops using the Foundation Fieldbus protocol.  Delta V eliminates device-specific wiring used to run 4-20 mA loops.  It works with instruments and control devices equipped with computer chips, so that the control loop is local to the device (for example a valve) performing the control.  

My job was to devise tests to put the system's features and capabilities through all its paces.  Innumerable loops were configured using Delta V function blocks to test both the system's most used features and then also its most arcane capabilities.  We interfaced Delta V controllers with a simulated plant we created in LabVIEW and ran on a separate computer.  For example we tested all PID functionality, including faults, the action of each part of the PID, an auto-tuner for the PID, and a fuzzy logic controller.  I became an expert in using the Foundation Fieldbus function blocks, learning even the most arcane details about them.