National Instruments DAQ X NI 634 Series User Manual page 9

Contents
Chapter 5
Analog Output
AO Reference Selection.................................................................................................... 5-2
Minimizing Glitches on the Output Signal .......................................................................5-2
Analog Output Data Generation Methods ........................................................................ 5-3
Software-Timed Generations .................................................................................... 5-3
Hardware-Timed Generations................................................................................... 5-3
Analog Output Triggering ................................................................................................ 5-4
Connecting Analog Output Signals .................................................................................. 5-5
Analog Output Timing Signals ......................................................................................... 5-5
AO Start Trigger Signal ............................................................................................ 5-6
Retriggerable Analog Output............................................................................ 5-6
Using a Digital Source ...................................................................................... 5-6
Using an Analog Source ................................................................................... 5-7
Routing AO Start Trigger Signal to an Output Terminal ................................. 5-7
AO Pause Trigger Signal .......................................................................................... 5-7
Using a Digital Source ...................................................................................... 5-8
Using an Analog Source ................................................................................... 5-8
Routing AO Pause Trigger Signal to an Output Terminal................................ 5-8
AO Sample Clock Signal .......................................................................................... 5-8
Using an Internal Source................................................................................... 5-8
Using an External Source ................................................................................. 5-9
Routing AO Sample Clock Signal to an Output Terminal ............................... 5-9
Other Timing Requirements ............................................................................. 5-9
AO Sample Clock Timebase Signal ......................................................................... 5-10
Getting Started with AO Applications in Software .......................................................... 5-11
Chapter 6
Digital I/O
Digital Input Data Acquisition Methods........................................................................... 6-2
Software-Timed Acquisitions ................................................................................... 6-2
Hardware-Timed Acquisitions.................................................................................. 6-2
Digital Input Triggering.................................................................................................... 6-3
Digital Waveform Acquisition.......................................................................................... 6-4
DI Sample Clock Signal ...........................................................................................6-4
Using an Internal Source................................................................................... 6-5
Using an External Source ................................................................................. 6-5
Routing DI Sample Clock to an Output Terminal ............................................ 6-5
Other Timing Requirements ............................................................................. 6-5
DI Sample Clock Timebase Signal ........................................................................... 6-6
DI Start Trigger Signal ............................................................................................. 6-7
Retriggerable DI ............................................................................................... 6-7
Using a Digital Source ...................................................................................... 6-7
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