National Instruments NI cDAQ-9178 User Manual

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Contents
Chapter 1
Getting Started with the cDAQ Chassis
Safety Guidelines.............................................................................................................. 1-3
Safety Guidelines for Hazardous Voltages............................................................... 1-3
Electromagnetic Compatibility Guidelines ...................................................................... 1-3
Hardware Symbol Definitions .......................................................................................... 1-4
Unpacking......................................................................................................................... 1-4
Installing the cDAQ Chassis............................................................................................. 1-5
Mounting the cDAQ Chassis............................................................................................ 1-7
Using the cDAQ Chassis on a Desktop .................................................................... 1-8
NI 9901 Desktop Kit for cDAQ-9174/9178 Chassis........................................ 1-8
Mounting the cDAQ Chassis on a Panel .................................................................. 1-9
cDAQ-9171 ...................................................................................................... 1-9
cDAQ-9174/9178 ............................................................................................. 1-9
Mounting the cDAQ-9174/9178 on a DIN Rail ....................................................... 1-11
cDAQ Chassis Features .................................................................................................... 1-12
LEDs......................................................................................................................... 1-12
USB Port and Cable Strain Relief ............................................................................ 1-13
TRIG 0 (PFI 0) and TRIG 1 (PFI 1) BNC Connectors ............................................ 1-13
Power Connector ...................................................................................................... 1-13
Chassis Grounding Screw......................................................................................... 1-13
Cables and Accessories .................................................................................................... 1-14
Removing Modules from the Chassis............................................................................... 1-14
Using the cDAQ Chassis .................................................................................................. 1-15
C Series Module ....................................................................................................... 1-15
Parallel versus Serial DIO Modules ................................................................. 1-16
cDAQ Module Interface ........................................................................................... 1-16
STC3......................................................................................................................... 1-16
Chapter 2
Analog Input
Analog Input Triggering Signals ...................................................................................... 2-1
Analog Input Timing Signals ........................................................................................... 2-1
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............................... 2-2
Scanned Modules.............................................................................................. 2-3
Simultaneous Sample-and-Hold Modules ........................................................ 2-3
Sigma-Delta Modules ....................................................................................... 2-3
Slow Sample Rate Modules.............................................................................. 2-4
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National Instruments NI cDAQ-9178 Specifications

General

Brand	National Instruments
Model	NI cDAQ-9178
Category	Chassis
Language	English