Scan classes

To achieve the best performance with previous versions of the interface, users had to configure their points so as to balance the number of requests sent to remote devices during each scan. In contrast, starting with version 4.2.x of the interface, the distribution of PI points among scan classes no longer has a significant impact on performance. The interface handles requests to each device independently, so a large volume of requests to one device does not impede requests to other devices. As a result, it is no longer necessary to consider how points are distributed among scan classes in order to achieve the best performance.