National Instruments cDAQ-9185 - Page 7

Contents
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Chapter 2
Networking
Internal Ethernet Switch ...................................................................................................2-1
IEEE 802.1AS-2011 Precision Time Protocol ......................................................... 2-1
IEEE 802.1Q-2014 Rapid Spanning Tree Protocol (RSTP)..................................... 2-2
Chassis MAC Addresses...........................................................................................2-2
Topology Options .............................................................................................................2-3
Line Topology........................................................................................................... 2-3
Ring Topology ..........................................................................................................2-4
Star Topology ........................................................................................................... 2-4
Other Topologies ...................................................................................................... 2-5
External Switch Requirements..........................................................................................2-6
Chapter 3
Analog Input
Analog Input Triggering Signals ......................................................................................3-1
Analog Input Timing Signals............................................................................................ 3-1
AI Sample Clock Signal ........................................................................................... 3-2
Routing the Sample Clock to an Output Terminal ...........................................3-2
AI Sample Clock Timebase Signal...........................................................................3-2
AI Convert Clock Signal Behavior For Analog Input Modules ...............................3-3
Scanned Modules.............................................................................................. 3-3
Simultaneous Sample-and-Hold Modules ........................................................ 3-3
Delta-Sigma Modules ....................................................................................... 3-3
Slow Sample Rate Modules.............................................................................. 3-4
AI Start Trigger Signal .............................................................................................3-5
Using a Digital Source......................................................................................3-5
Using an Analog Source ................................................................................... 3-5
Using a Time Source......................................................................................... 3-5
Routing AI Start Trigger to an Output Terminal .............................................. 3-5
AI Reference Trigger Signal..................................................................................... 3-6
Using a Digital Source......................................................................................3-6
Using an Analog Source ................................................................................... 3-7
Routing the Reference Trigger Signal to an Output Terminal.......................... 3-7
AI Pause Trigger Signal............................................................................................ 3-7
Using a Digital Source......................................................................................3-7
Using an Analog Source ................................................................................... 3-7
Analog Input Sync Pulse...................................................................................................3-8
Getting Started with AI Applications in Software............................................................ 3-8
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