Field Information Manager supports an automatic Diagnostic Scan in the background to read the health status of connected field devices.
The Diagnostic Scan is enabled by default and can be configured via Tools Menu - PROJECTS - PROCESS COCKPIT.
The scan iterates over all connected field devices in an interval of 3 seconds, i.e. it takes 30 seconds to iterate over a complete example topology with 10 field devices.
A device can indicate its health status using the NAMUR NE 107 standard which covers five different status indications. It is displayed e.g. in Device Views and Dashboard.