Digital Output >> Logic Family

NI-DAQmx C Reference Help

Edition Date: January 2019

Part Number: 370471AM-01

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Data Type: int32
Description: Specifies the logic family to use for generation. A logic family corresponds to voltage thresholds that are compatible with a group of voltage standards. Refer to the device documentation for information on the logic high and logic low voltages for these logic families.


Valid values

DAQmx_Val_2point5V 14620 Compatible with 2.5 V CMOS signals.
DAQmx_Val_3point3V 14621 Compatible with LVTTL signals.
DAQmx_Val_5V 14619 Compatible with TTL and 5 V CMOS signals.



You can get/set/reset this property using:

  DAQmxGetDOLogicFamily

  DAQmxSetDOLogicFamily

  DAQmxResetDOLogicFamily

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