This should allow free running of the hardware, and checks can be made to see Fast Triggers are present. It also checks correct operation of the DT32 bus. Statistics for data blocks input to DT2V driver should be incrementing, but zero thereafter. This should provide further statistics about the quality of the hardware data blocks. If the quality looks bad, then there may be a hardware fault.
Further tests can then pinpoint the exact problem.
Each component of the system will need to contribute to the available set of statistics. The D2VB handler will count every data block that comes from the DT32 bus. THe handler writing formatted event blocks to the tape server, will have a separate counter. The event checking procedure will require many statistics for the various error types possible in the VXI data stream. These include corrupted data tokens, duplicate words etc.