National Instruments NI cDAQ-9181 User Manual

Contents
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Chapter 2
Analog Input
Analog Input Triggering Signals ......................................................................................2-1
Analog Input Timing Signals............................................................................................2-2
AI Sample Clock Signal ........................................................................................... 2-2
Routing the Sample Clock to an Output Terminal ...........................................2-2
AI Sample Clock Timebase Signal ........................................................................... 2-2
AI Convert Clock Signal Behavior For Analog Input Modules ...............................2-3
Scanned Modules.............................................................................................. 2-3
Simultaneous Sample-and-Hold Modules ........................................................2-3
Sigma-Delta Modules ....................................................................................... 2-3
Slow Sample Rate Modules.............................................................................. 2-4
AI Start Trigger Signal .............................................................................................2-5
Using a Digital Source...................................................................................... 2-5
Using an Analog Source ................................................................................... 2-5
Routing AI Start Trigger to an Output Terminal ..............................................2-5
AI Reference Trigger Signal.....................................................................................2-5
Using a Digital Source...................................................................................... 2-6
Using an Analog Source ................................................................................... 2-6
Routing the Reference Trigger Signal to an Output Terminal..........................2-6
AI Pause Trigger Signal............................................................................................2-7
Using a Digital Source...................................................................................... 2-7
Using an Analog Source ................................................................................... 2-7
Getting Started with AI Applications in Software............................................................ 2-7
Chapter 3
Analog Output
Analog Output Data Generation Methods ........................................................................ 3-1
Software-Timed Generations .................................................................................... 3-1
Hardware-Timed Generations...................................................................................3-2
Buffered Analog Output ...................................................................................3-2
Analog Output Triggering Signals.................................................................................... 3-3
Analog Output Timing Signals ......................................................................................... 3-3
AO Sample Clock Signal .......................................................................................... 3-3
Routing AO Sample Clock to an Output Terminal........................................... 3-4
AO Sample Clock Timebase Signal .........................................................................3-4
AO Start Trigger Signal ............................................................................................3-4
Using a Digital Source...................................................................................... 3-4
Using an Analog Source ................................................................................... 3-4
Routing AO Start Trigger Signal to an Output Terminal ................................. 3-4
AO Pause Trigger Signal .......................................................................................... 3-5
Using a Digital Source...................................................................................... 3-5
Using an Analog Source ................................................................................... 3-6

National Instruments NI cDAQ-9181 Specifications

General

Brand	National Instruments
Model	NI cDAQ-9181
Category	Chassis
Language	English