Table Of Contents - National Instruments PCI-6601 User Manual

Contents
About This Manual
Related Documentation..................................................................................................viii
Chapter 1
Introduction
Using PXI with CompactPCI.........................................................................................1-1
Installation .....................................................................................................................1-2
Accessories and Cables..................................................................................................1-2
Chapter 2
Device Overview
Digital I/O ......................................................................................................................2-1
Prescaling.......................................................................................................................2-1
Pad Synchronization ......................................................................................................2-2
Duplicate Count Prevention...........................................................................................2-4
Example Application That Works Correctly (No Duplicate Counting)..........2-5
Example Application That Works Incorrectly (Duplicate Counting) .............2-6
Example Application That Prevents Duplicate Counting ...............................2-6
Enabling Duplicate Count Prevention in NI-DAQmx.....................................2-7
When to Use Duplicate Count Prevention.......................................................2-7
When Not to Use Duplicate Count Prevention................................................2-7
Transfer Rates ................................................................................................................2-8
High Precision Clock (NI 6608) ....................................................................................2-9
Using the OCXO as the SOURCE Counter ....................................................2-9
Using the OCXO as the 10 MHz PXI Backplane Clock .................................2-9
Measuring OCXO Stable Frequency Deviation ..............................................2-11
Calibration .....................................................................................................................2-12
Register-Level Programming Information.....................................................................2-12
Chapter 3
Signal Connections
Programmable Function Interfaces (PFIs) .....................................................................3-1
Digital Filtering..............................................................................................................3-1
Power-On State ..............................................................................................................3-3
I/O Connector Pinout .....................................................................................................3-3
Motion Encoder Context Pin Assignments....................................................................3-6
Outputs...........................................................................................................................3-7
© National Instruments vi NI 660x User Manual