Inspection Execution Timing

Runtime execution of an inspection includes the time required to display a particular image with graphics on the host PC monitor.

Results upload and image display decrease the throughput of an inspection, as they must be done as part of the inspection cycle. For a typical mix of results, for example, for a set of 15 or so results, expect an additional 3 to 5 milliseconds on the inspection overall cycle time. This can be measured by running the inspection without any results selected for upload and noting the cycle time. Then, stop the inspection, select results for upload and run the inspection. Once the inspection is running, turn on the Report by clicking Reports from FrontRunner™ and note the cycle time. The difference is the time spent collecting and sending results at the end of the cycle.

Images and graphics sent to VB are part of the execution of each cycle for as long as there is a display connected to one of the Inspection Snapshots.

An inspection cycle with image display and graphics enabled is shown in the timing diagram in Figure 1-8.

FIGURE 1-8. 

Inspection Timing Diagram with Display and Graphics