Programming instructions

Contents
LabVIEW Data Acquisition Basics Manual xviii
© National Instruments Corporation
Figure 24-16. Diagram of Cont Pulse Train (8253) VI ................................................. 24-13
Figure 24-17. Physical Connections for Generating a Finite Pulse Train..................... 24-14
Figure 24-18. Diagram of Finite Pulse Train-Easy (DAQ-STC) VI ............................. 24-14
Figure 24-19. Diagram of Finite Pulse Train-Int (DAQ-STC) VI................................. 24-15
Figure 24-20. External Connections Diagram from the Front Panel
of Finite Pulse Train Adv (DAQ-STC) VI........................................... 24-16
Figure 24-21. Diagram of Finite Pulse Train-Adv (DAQ-STC) VI.............................. 24-17
Figure 24-22. External Connections Diagram from the Front Panel
of Finite Pulse Train (8253) VI............................................................ 24-17
Figure 24-23. Frame 0 of Finite Pulse Train (8253) VI ................................................ 24-18
Figure 24-24. Frame 1 of Finite Pulse Train (8253) VI ................................................ 24-19
Figure 24-25. Frame 2 of Finite Pulse Train (8253) VI ................................................ 24-20
Figure 24-26. CTR Control VI Front Panel and Block Diagram .................................. 24-21
Figure 24-27. Uncertainty of One Timebase Period...................................................... 24-22
Figure 24-28. Using the Generate Delayed Pulse and Stopping the
Counting Operation.............................................................................. 24-23
Figure 24-29. Stopping a Generated Pulse Train........................................................... 24-23
Figure 25-1. Counting Input Signals to Determine Pulse Width................................. 25-1
Figure 25-2. Physical Connections for Determining Pulse Width .............................. 25-2
Figure 25-3. Diagram of Measure Pulse Width (DAQ-STC) VI................................. 25-2
Figure 25-4. Menu Choices for Type of Measurement for the Measure Pulse Width
or Period(DAQ-STC) VI...................................................................... 25-3
Figure 25-5. Diagram of Measure Pulse Width (9513) VI.......................................... 25-4
Figure 25-6. Menu Choices for Type of Measurement for the Measure Pulse Width
or Period (9513) VI.............................................................................. 25-4
Figure 25-7. Diagram of Measure Short Pulse Width (8253) VI ................................ 25-5
Figure 25-8. Measuring Pulse Width with Intermediate VIs....................................... 25-7
Figure 25-9. Diagram of Meas Buffered Pulse-Period (DAQ-STC).vi....................... 25-7
Figure 26-1. Measuring Square Wave Frequency ....................................................... 26-1
Figure 26-2. Measuring a Square Wave Period........................................................... 26-2
Figure 26-3. External Connections for Frequency Measurement................................ 26-3
Figure 26-4. External Connections for Period Measurement ...................................... 26-3
Figure 26-5. Diagram of Measure Frequency-Easy (DAQ-STC) VI .......................... 26-4
Figure 26-6. Diagram of Measure Frequency-Easy (9513) VI.................................... 26-5
Figure 26-7. Frequency Measurement Example Using Intermediate VIs................... 26-6
Figure 26-8. Diagram of Measure Frequency > 1 kHz (8253) VI............................... 26-7
Figure 26-9. Diagram of Measure Period-Easy (DAQ-STC) VI................................. 26-8
Figure 26-10. Diagram of Measure Period-Easy (9513) VI.......................................... 26-9
Figure 26-11. Measuring Period Using Intermediate Counter VIs................................ 26-10