
ii Table of Contents
4 Operation Theory.............................................................. 29
4.1 A/D Conversion.................................................................. 29
DAQ-/DAQe-/PXI-2010 AI Data Format ....................... 30
DAQ/DAQe/PXI-2005/2006/2016 AI Data Format ........33
Software Conversion with Polling Data Transfer Acqui-sition
Mode (Software Polling) .....................................34
Programmable Scan Acquisition Mode ......................... 35
Trigger Modes ............................................................... 37
4.2 D/A Conversion.................................................................. 47
Software Update ...........................................................48
Timed Waveform Generation ........................................49
Trigger Modes ............................................................... 51
4.3 Digital I/O ........................................................................... 57
4.4 General Purpose Timer/Counter Operation....................... 57
Timer/Counter functions basics .................................... 57
General Purpose Timer/Counter modes ....................... 58
4.5 Trigger Sources ................................................................. 63
Software-Trigger ...........................................................63
External Analog Trigger ................................................ 63
4.6 User-controllable Timing Signals ....................................... 68
DAQ timing signals ....................................................... 69
Auxiliary Function Inputs (AFI) ...................................... 70
System Synchronization Interface ................................72
AI_Trig_Out and AO_Trig_Out .....................................75
5 Calibration ......................................................................... 77
5.1 Loading Calibration Constants........................................... 77
5.2 Auto-calibration.................................................................. 78
5.3 Saving Calibration Constants............................................. 78
Warranty Policy ..................................................................... 79
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