To Next Page

To Previous Page

Contents

Connecting Ground-Referenced Signal Sources ...........................................................4-21

What Are Ground-Referenced Signal Sources? ..............................................4-21

When to Use Differential Connections with Ground-Referenced

Signal Sources ..............................................................................................4-21

When to Use Non-Referenced Single-Ended (NRSE) Connections

with Ground-Referenced Signal Sources .....................................................4-22

When to Use Referenced Single-Ended (RSE) Connections with

Ground-Referenced Signal Sources..............................................................4-22

Using Differential Connections for Ground-Referenced Signal Sources........4-23

Using Non-Referenced Single-Ended (NRSE) Connections

for Ground-Referenced Signal Sources........................................................4-24

Field Wiring Considerations..........................................................................................4-25

Analog Input Timing Signals.........................................................................................4-25

AI Sample Clock Signal ..................................................................................4-28

Using an Internal Source...................................................................4-29

Using an External Source..................................................................4-29

Routing AI Sample Clock Signal to an Output Terminal .................4-29

Other Timing Requirements..............................................................4-29

AI Sample Clock Timebase Signal..................................................................4-30

AI Convert Clock Signal .................................................................................4-31

Using an Internal Source...................................................................4-32

Using an External Source..................................................................4-32

Routing AI Convert Clock Signal to an Output Terminal ................4-32

Using a Delay from Sample Clock to Convert Clock.......................4-32

Other Timing Requirements..............................................................4-33

AI Convert Clock Timebase Signal.................................................................4-35

AI Hold Complete Event Signal......................................................................4-36

AI Start Trigger Signal ....................................................................................4-36

Using a Digital Source ......................................................................4-36

Using an Analog Source ...................................................................4-37

Routing AI Start Trigger to an Output Terminal ..............................4-37

AI Reference Trigger Signal ...........................................................................4-37

Using a Digital Source ......................................................................4-38

Using an Analog Source ...................................................................4-38

Routing AI Reference Trigger Signal to an Output Terminal ..........4-38

AI Pause Trigger Signal ..................................................................................4-39

Using a Digital Source ......................................................................4-39

Using an Analog Source ...................................................................4-39

Routing AI Pause Trigger Signal to an Output Terminal .................4-39

Getting Started with AI Applications in Software.........................................................4-40

National Instruments NI 6251 User Manual

Questions and Answers: