Business Logic Tier (BLT) Host Applications

Business Logic Tier (BLT) components run under BLTHost applications, which are collections of components that are hosted by the same process.

The hosting process is called BLTHost.exe. Each BLT application is started by a script that runs when the associated service is started. The applications are registered with the AVEVA Enterprise SCADA Suite process monitoring system. Each application will automatically load the correct DLL at run-time to execute a given component.

This architecture allows BLT components to be grouped together in a single application or split into multiple applications. Depending on your scalability needs, or for debugging purposes, you may want to install all of your components in one application (standard) or use multiple applications.