Measurement Computing DaqView - Manual (Page 70)

A-2 Converting Counter Readings to Engineering Units for 3000 Series Devices 907994 Appendix A
Using the Select Mode Pull-Down List to Select the Count Mode (Type)
The counter modes for the channels are selected in DaqView’s spreadsheet area (preceding figure) by
either double-clicking in the channel’s Type cell or by selecting the desired cell and using the Select Mode
pull-down list.
The tick duration and the number of periods [referred to in the following equations] are found in the
enhanced counters configuration box (following figure). X1 equals 1 period, X10 equals 10 periods, etc.
Enhanced Counter Configuration Settings
To get 32-bit results, the appropriate conversions are as follows:
counter or totalize mode 32H*65535+32L = 32bit result
period modes
1
[32H*65535+32L]*tickduration/number of periods
pulsewidth 1 , or timing modes 1 [32H*65535+32L]*tickduration
frequency mode (in units of Hz)
If configured for Period
(a) compute one period in units of seconds and then
(b) compute 1/period in Hz
frequency mode (in units of Hz)
If configured for Counter
[32H*65535+32L]*scan rate (Note 2)
1 time, e.g., seconds, nanoseconds, microseconds, or milliseconds
2 Where scan rate is expressed in units of: number of scans per second.