1) Field networks provide access to process information through economical field devices to help reduce operational and maintenance costs and increase productivity. 2) WirelessHART enables transitioning to predictive maintenance through accessing device diagnostics, which can lower costs and increase plant availability. 3) A Venezuelan oil refinery saw a 60% reduction in lost profit opportunities and reduced random device failures by 95% through connecting over 5,000 field devices to their DCS and PAM system via HART.