USER GUIDE AND SPECIFICATIONS
NI cDAQ-9178/9174
For NI cDAQ-9178 (8-Slot) and NI cDAQ-9174 (4-Slot) Chassis
Contents
Introduction............................................................................................. 3
Safety Guidelines .................................................................................... 4
Safety Guidelines for Hazardous Voltages...................................... 4
Information Resources ............................................................................ 4
Technical Support on the Web......................................................... 4
Training Courses.............................................................................. 4
Installing the Software ............................................................................ 4
Installing Other Software................................................................. 4
Installing the NI cDAQ-9178/9174......................................................... 5
NI cDAQ-9178/9174 Dimensions ................................................... 5
Mounting the NI cDAQ-9178/9174................................................. 6
Setting Up the NI cDAQ-9178/9174 ...................................................... 9
Understanding LED Indications.............................................................. 10
Power LED ...................................................................................... 10
Ready LED ...................................................................................... 10
Active LED ...................................................................................... 10
Using the NI cDAQ-9178/9174 .............................................................. 11
C Series I/O Modules....................................................................... 11
cDAQ Module Interface .................................................................. 11
USB-STC3 ....................................................................................... 12
Analog Input ........................................................................................... 12
Analog Input Triggering .................................................................. 12
Analog Input Timing Signals........................................................... 15
Getting Started with AI Applications in Software........................... 17
Analog Output......................................................................................... 17
Analog Output Data Generation Methods ....................................... 18
Analog Output Triggering ............................................................... 19
Analog Output Timing Signals ........................................................ 21
Minimizing Glitches on the Output Signal ...................................... 22
Getting Started with AO Applications in Software ......................... 22
Digital I/O ............................................................................................... 22
Hardware-Timed Versus Static DIO Modules................................. 22
Static DIO ........................................................................................ 22
Digital Waveform Acquisition (Hardware-Timed Input) ................ 23
Digital Input Triggering................................................................... 23
Digital Input Timing Signals ........................................................... 25
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