National Instruments DAQ S Chapter 5 Analog Output

Contents
NI 6124/6154 User Manual vi ni.com
Connecting Analog Input Signals..................................................................................4-6
Types of Signal Sources..................................................................................4-7
Differential Connections for Ground-Referenced Signal Sources..................4-7
Common-Mode Signal Rejection Considerations............................ 4-9
Differential Connections for Non-Referenced or Floating Signal Sources ....4-9
DC-Coupled......................................................................................4-10
AC-Coupled......................................................................................4-11
Field Wiring Considerations...........................................................................4-11
Minimizing Drift in Differential Mode...........................................................4-12
Analog Input Timing Signals........................................................................................4-13
AI Sample Clock Signal..................................................................................4-14
Using an Internal Source.................................................................. 4-14
Using an External Source.................................................................4-15
Routing AI Sample Clock Signal to an Output Terminal.................4-15
Other Timing Requirements.............................................................4-15
AI Sample Clock Timebase Signal.................................................................4-16
AI Convert Clock Signal.................................................................................4-16
Using an Internal Source.................................................................. 4-17
Using an External Source.................................................................4-17
Routing AI Convert Clock Signal to an Output Terminal................ 4-17
AI Convert Clock Timebase Signal................................................................4-17
AI Hold Complete Event Signal.....................................................................4-18
AI Start Trigger Signal....................................................................................4-18
Using a Digital Source......................................................................4-18
Using an Analog Source...................................................................4-19
Routing AI Start Trigger to an Output Terminal.............................. 4-19
AI Reference Trigger Signal...........................................................................4-19
Using a Digital Source......................................................................4-20
Using an Analog Source...................................................................4-20
Routing AI Reference Trigger Signal to an Output Terminal.......... 4-20
Getting Started with AI Applications in Software ........................................................4-21
Chapter 5
Analog Output
Minimizing Glitches on the Output Signal....................................................................5-2
AO Data Generation Methods.......................................................................................5-2
Analog Output Triggering.............................................................................................5-4
Connecting Analog Output Signals...............................................................................5-4
Waveform Generation Timing Signals..........................................................................5-6
AO Sample Clock Signal................................................................................5-6
Using an Internal Source.................................................................. 5-6
Using an External Source.................................................................5-7
Routing AO Sample Clock Signal to an Output Terminal............... 5-7