Configuration and Installation
Chapter 2
PC-TIO-10 User Manual
2-10
© National Instruments Corporation
Figure 2-7 shows connections for a typical event-counting operation where a switch is used to
gate the counter on and off.
Signal
Source
Switch
33
GND
Counter
OUT
SOURCE
GATE
+5 V
I/O Connector
PC-TIO-10 Board
Figure 2-7. Event-Counting Application with External Switch Gating
To perform pulse-width measurement, a counter is programmed to be level-gated. The pulse to
be measured is applied to the counter GATE input. The counter is programmed to count while
the signal at the GATE input is either high or low. If the counter is programmed to count an
internal timebase, then the pulse width is equal to the counter value multiplied by the timebase
period.
For time-lapse measurement, a counter is programmed to be edge-gated. An edge is applied to
the counter GATE input to start the counter. The counter can be programmed to start counting
after receiving either a high-to-low edge or a low-to-high edge. If the counter is programmed to
count an internal timebase, then the time lapse since receiving the edge is equal to the counter
value multiplied by the timebase period.
To measure frequency, a counter is programmed to be level-gated and the rising or falling edges
are counted in a signal applied to a SOURCE input. The gate signal applied to the counter
GATE input is of some known duration. In this case, the counter is programmed to count either
rising or falling edges at the SOURCE input while the gate is applied. The frequency of the
input signal is then the count value divided by the known gate period. Figure 2-8 shows the
connections for a frequency measurement application. A second counter can also be used to
generate the gate signal in this application.
Summary of Contents for PC-TIO-10
Page 57: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 2 National Instruments Corporation ...
Page 58: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 3 PC TIO 10 User Manual ...
Page 59: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 4 National Instruments Corporation ...
Page 60: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 5 PC TIO 10 User Manual ...
Page 61: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 6 National Instruments Corporation ...
Page 62: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 7 PC TIO 10 User Manual ...
Page 63: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 8 National Instruments Corporation ...
Page 64: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 9 PC TIO 10 User Manual ...
Page 65: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 10 National Instruments Corporation ...
Page 66: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 11 PC TIO 10 User Manual ...
Page 67: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 12 National Instruments Corporation ...
Page 68: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 13 PC TIO 10 User Manual ...
Page 69: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 14 National Instruments Corporation ...
Page 70: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 15 PC TIO 10 User Manual ...
Page 71: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 16 National Instruments Corporation ...
Page 72: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 17 PC TIO 10 User Manual ...
Page 73: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 18 National Instruments Corporation ...
Page 74: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 19 PC TIO 10 User Manual ...
Page 75: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 20 National Instruments Corporation ...
Page 76: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 21 PC TIO 10 User Manual ...
Page 77: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 22 National Instruments Corporation ...
Page 78: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 23 PC TIO 10 User Manual ...
Page 79: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 24 National Instruments Corporation ...
Page 80: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 25 PC TIO 10 User Manual ...
Page 81: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 26 National Instruments Corporation ...
Page 82: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 27 PC TIO 10 User Manual ...
Page 83: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 28 National Instruments Corporation ...
Page 84: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 29 PC TIO 10 User Manual ...
Page 85: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 30 National Instruments Corporation ...
Page 86: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 31 PC TIO 10 User Manual ...
Page 87: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 32 National Instruments Corporation ...
Page 88: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 33 PC TIO 10 User Manual ...
Page 89: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 34 National Instruments Corporation ...
Page 90: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 35 PC TIO 10 User Manual ...
Page 91: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 36 National Instruments Corporation ...
Page 92: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 37 PC TIO 10 User Manual ...
Page 93: ...AMD Am9513A Data Sheet Appendix C PC TIO 10 User Manual C 38 National Instruments Corporation ...
Page 94: ...Appendix C AMD Am9513A Data Sheet National Instruments Corporation C 39 PC TIO 10 User Manual ...