Sentinel is a real time performance monitoring system tightly integrated with OSI PI. Sentinel utilizes real time and historical data from PI and calculates Key Performance Indicators in real time. KPI’s can be user defined or the user can select Sentinel templates for:· Energy Tracking—Monitors the real time performance of heaters, boilers, pumps and compressors within a process plant as regards to energy consumption. · Heater Sentinel—Provides real time process engineering for monitoring and improving the performance of heaters (energy, capacity, emissions and availability) in hydrocarbon process facilities.· Tower Sentinel—Provides real time virtual analyzers for towers to allow operators to reduce energy and to improve capacity.Sentinel can be combined with ACE to provide Enterprises with all their real time KPI monitoring requirements to achieve operational excellence.