Patent ID: 7953849

Claim:
In an enterprise having an industrial process and a field device, a method of monitoring the field device comprising connecting a computer system to the field device, wherein the computer system comprises a viewing monitor, memory with first and second server software programs stored thereon and a processor for executing the first and second server software programs, the first server software program being operable through an activated subscription to provide event notifications from the field device, and the second server software program being operable through an activated subscription to provide diagnostic data from the field device; activating a subscription to the first server software program for a monitoring software program; activating a subscription to the second server software program for the monitoring software program only after the monitoring software program receives an event notification from the first server software program; receiving diagnostic data from the second server software program in the monitoring software program; generating device health information from the diagnostic data in the monitoring software program; displaying the device health information on the viewing monitor; and deactivating the subscription to the second server software program for the monitoring software program.