Analog Input >> General Properties >> Signal Conditioning >> Excitation >> Advanced >> Use Multiplexed Excitation

NI-DAQmx C Properties

Analog Input >> General Properties >> Signal Conditioning >> Excitation >> Advanced >> Use Multiplexed Excitation

Data Type: bool32
Description: Specifies if the SCXI-1122 multiplexes the excitation to the upper half of the channels as it advances through the scan list.

You can get/set/reset this property using:
  DAQmxGetAIExcitUseMultiplexed
  DAQmxSetAIExcitUseMultiplexed
  DAQmxResetAIExcitUseMultiplexed