Labview 6.1,Windows 2000
I am analyzing an application that measures the period of a rotating shaft. This application is designed to determine how long it takes the shaft to stop rotating. The hardware involved, is the 6023E Multi-I/O card. The application makes repeated calls to Lvdaq.dll. The function call of interest is “Counter_Read_BufferInterface”. Of particular interest in this function call is the returned value of “acquisition state”. The possible return values are:
0: Running
1: Finished with backlog
2: Finished without backlog
3: Paused
4: No acquisition
My question is; How is the acquisition state determined? What measure being made by this function call causes the acquisition state to change from ‘Running” to (for instance) Finished without backlog. I am not overly concerned with the backlog status, just ‘Finished’.
