Historian Instances

Each historian server is called a historian instance and each instance has a logical name that must be unique on the Foxboro Evo system. For example: hist01.

The logical names used in FAIM must match those in the configuration files downloaded into FAIM from AIM or legacy historian, and those used in the Foxboro Evo system configuration for trends, alarm history destination etc. For the Foxboro Evo applications to function correctly, the historian logical names must be six characters long and should have all letters in lower case.

In FAIM, each historian instance is maintained by a corresponding instance of a FAIMEngine, which means a FAIMEngine process is equivalent to an AIM historian process. The FAIMEngine is configured with its associated historian instance logical name in the engine configuration options.