GefVCRService and the GefVCRControlApp

Dynamic Graphical Replay consists of the GefVCRService and the GefVCRControlApp .

It works by letting supported client applications connect to an alternate data source, the GefVCRService.

The GefVCRControlApp controls point data source switching, playback of data, and searching.

Use the GefVCRControlApp to switch from the live Point Manager connection to the historical GefVCRService connection. This puts the local node in DGR mode.

Once the switch to DGR mode is complete, the GefVCRControlApp provides the means to send commands to the GefVCRService. Commands can include functions such as setting the start time for replaying data; start, stop and pause of data replay; controlling the speed of the data replay and searching for when a point value meets a specified condition.

When the GefVCRService receives the commands it queries the CIMPLICITY Database Logging default point logging table (DATA_LOG) for the historical point values and notifies CimView of changes in point values during replay.

When you finish replaying data, use the GefVCRControlApp to switch your local node back to Live mode..