National Instruments PCIe-6323 User Manual

PCIe-6323

National Instruments PCIe-6323 Specifications

General

Brand	National Instruments
Model	PCIe-6323
Category	I/O Systems
Language	English

Summary

Getting Started with X Series Devices

Safety Guidelines

Essential safety precautions for operating NI X Series devices and modules.

Installation

Instructions for installing application software and NI-DAQmx driver.

Device Self-Calibration

Procedure for self-calibrating the X Series device after installation.

Mounting NI USB X Series Devices

Guide for mounting USB X Series devices on desktops, walls, or DIN rails.

Device Pinouts

Reference to Appendix A for detailed pinout information of X Series devices.

Device Specifications

Information on where to find detailed specifications for X Series devices.

DAQ System Overview

DAQ Hardware

Description of DAQ hardware components and the DAQ-STC3 engine.

Calibration Circuitry

Explanation of the calibration circuitry for analog inputs and outputs.

Cables and Accessories

Overview of available cables, connector blocks, and accessories for X Series devices.

Signal Conditioning Options

Details on SCXI and SCC signal conditioning systems for DAQ devices.

Programming Devices in Software

Information on using NI-DAQmx driver and programming examples for X Series devices.

Connector and LED Information

I/O Connector Signal Descriptions

Description of signals found on the I/O connectors for X Series devices.

PCI Express Device Disk Drive Power Connector

Details on the disk drive power connector for PCI Express X Series devices.

USB Device LED Patterns

Explanation of the READY and ACTIVE LED behavior on USB X Series devices.

Analog Input

Analog Input on MIO X Series Devices

Overview of analog input circuitry and configurations for MIO X Series devices.

Analog Input Range

Information on selecting and understanding analog input voltage ranges.

Analog Input Ground-Reference Settings

Details on differential, referenced single-ended, and non-referenced single-ended modes.

Multichannel Scanning Considerations

Issues affecting accuracy in multichannel scanning applications like settling time.

Analog Input Data Acquisition Methods

Comparison of software-timed and hardware-timed acquisition methods.

Analog Input Triggering

Overview of start, reference, and pause trigger actions for analog input.

Connecting Analog Input Signals

Recommended input configurations for floating and ground-referenced signal sources.

Field Wiring Considerations

Recommendations for minimizing noise pickup and maximizing accuracy in wiring.

Analog Input Timing Signals

Explanation of timing signals like AI Sample Clock and AI Convert Clock.

Analog Output

AO Reference Selection

How to set the analog output range and select AO reference voltage.

Analog Output Data Generation Methods

Details on software-timed and hardware-timed generation methods.

Analog Output Triggering

Overview of start and pause trigger actions for analog output.

AO Start Trigger Signal

Using the AO Start Trigger signal to initiate waveform generation.

AO Pause Trigger Signal

Using the AO Pause Trigger signal to mask off samples in a DAQ sequence.

AO Sample Clock Signal

Using the AO Sample Clock signal to initiate AO samples.

Getting Started with AO Applications in Software

Guidance on developing analog output applications using NI-DAQmx.

Digital I/O

Digital Input Data Acquisition Methods

Comparison of software-timed and hardware-timed acquisition methods for digital input.

Digital Input Triggering

Overview of start, reference, and pause trigger actions for digital input.

Digital Waveform Acquisition

Information on acquiring digital waveforms on Port 0 DIO lines.

DI Sample Clock Signal

Using the DI Sample Clock signal to sample Port 0 terminals.

Digital Output Data Generation Methods

Details on software-timed and hardware-timed generation methods for digital output.

Digital Output Triggering

Overview of start and pause trigger actions for digital output.

DO Sample Clock Signal

Using the DO Sample Clock signal to update DO terminals.

I/O Protection

Guidelines to avoid fault conditions for DIO and PFI signals.

Watchdog Timer

Software-configurable feature to set critical outputs to safe states during failures.

Counters

Counter Timing Engine

Explanation of the counter timing engine and clock source requirements.

Counter Input Applications

List of counter input applications like edge counting and pulse measurements.

Pulse-Width Measurement

How counters measure the width of a pulse on their Gate input signal.

Frequency Measurement

Methods for measuring frequency using counters, including low and high frequency techniques.

Choosing a Method for Measuring Frequency

Factors to consider when selecting the best frequency measurement method.

Period Measurement

How counters measure the period between two edges on the Gate input signal.

Position Measurement

Using counters for position measurements with quadrature or two-pulse encoders.

Two-Signal Edge-Separation Measurement

Measuring time between edges on two signals (Aux and Gate).

Counter Output Applications

Overview of counter output applications like pulse generation and frequency generation.

Simple Pulse Generation

Generating a single pulse using the Counter n Internal Output signal.

Pulse Train Generation

Creating pulse trains with programmable frequency and duty cycle.

Frequency Generation

Generating frequencies using counters or the dedicated frequency generator.

Counter Timing Signals

List and description of counter timing signals like Source, Gate, and Aux.

Counter n Source Signal

How the Counter n Source signal increments/decrements the counter value.

Counter Triggering

Overview of Arm Start Trigger, Start Trigger, and Pause Trigger actions for counters.

PFI

Using PFI Terminals as Timing Input Signals

Routing external timing signals to X Series functions via PFI terminals.

Exporting Timing Output Signals Using PFI Terminals

Routing timing signals to PFI terminals configured as outputs.

Using PFI Terminals as Static Digital I/Os

Configuring PFI terminals for static digital input or output.

PFI Filters

Enabling programmable debouncing filters on PFI signals.

I/O Protection

Guidelines to avoid fault conditions for DIO and PFI signals.

Digital Routing and Clock Generation

100 MHz Timebase

Using the 100 MHz Timebase for all internal subsystems.

External Reference Clock

Using an external clock to synchronize internal timebases on X Series devices.

Synchronizing Multiple Devices

Methods for synchronizing multiple PXI Express, PCI Express, and USB devices.

Real-Time System Integration (RTSI)

Using RTSI for common clocks and shared trigger signals between devices.

PXI and PXI Express Clock and Trigger Signals

Details on PXI and PXI Express clock and trigger signals.

PXIe_CLK100

Low-skew 100 MHz reference clock for PXI Express module synchronization.

Bus Interface

Data Transfer Methods

Overview of data transfer methods for X Series devices across PCI Express, PXI Express, and USB.

PCI Express/PXI Express Device Data Transfer Methods

Primary ways to transfer data across the PCI Express bus using DMA and Programmed I/O.

USB Device Data Transfer Methods

Primary ways to transfer data across the USB bus using USB Signal Stream and Programmed I/O.

PXIe DAQ Bandwidth Considerations

Ensuring sufficient data bandwidth for PXI Express systems.

USB DAQ Bandwidth Considerations

Accounting for USB limitations to avoid buffer overflow/underflow errors.

Triggering

Triggering with a Digital Source

Generating a trigger on a digital signal using PFI, RTSI, or PXI_STAR.

Triggering with an Analog Source

Generating a trigger on an analog signal using APFI terminals or AI channels.

Analog Trigger Actions

Actions that can be programmed in response to the Analog Comparison Event signal.

Analog Trigger Types

Configuration modes for analog triggers: edge, hysteresis, and window triggering.

Analog Edge Triggering with Hysteresis

Using hysteresis to reduce false triggering due to noise or jitter.

Analog Window Triggering

Triggering when an analog signal enters or leaves a defined voltage window.

Analog Trigger Accuracy

Factors affecting and methods to improve analog trigger accuracy.

Device-Specific Information

NI 6320

Pinouts, specifications, and accessory options for the NI 6320 device.

NI 6321/6341

Pinouts, specifications, and accessory options for NI 6321/6341 devices.

NI 6345/6355

Pinouts, specifications, and accessory options for NI 6345/6355 devices.

NI 6346

Pinouts, specifications, and accessory options for the NI 6346 device.

NI 6349

Pinouts, specifications, and accessory options for the NI 6349 device.

NI 6351/6361

Pinouts, specifications, and accessory options for NI 6351/6361 devices.

NI 6353/6363

Pinouts, specifications, and accessory options for NI 6353/6363 devices.

NI 6356/6366/6376/6386/6396

Specifications and accessory options for NI 6356/6366/6376/6386/6396 devices.

NI 6358/6368/6378

Pinouts, specifications, and accessory options for NI 6358/6368/6378 devices.

NI 6365

Pinouts, specifications, and accessory options for the NI 6365 device.

NI 6374

Specifications and accessory options for the NI 6374 device.

NI 6375

Pinouts, specifications, and accessory options for the NI 6375 device.

Where to Go from Here

Example Programs

Information on finding and using NI-DAQmx example programs for X Series devices.

Related Documentation

References to documentation for writing applications with NI-DAQmx.

NI-DAQmx

NI-DAQmx Readme and Help documentation for devices and concepts.

Troubleshooting

Analog Input

Troubleshooting common analog input issues like crosstalk and ground-reference problems.

Analog Output

Troubleshooting output signal glitches and minimizing them.

Counters

Information on connecting counter signals to X Series devices.

NI Services

Services and Resources

Overview of NI services including maintenance, calibration, and system integration.

Maintenance and Hardware Services

Details on warranty, repair, and calibration services for NI hardware.

Training and Certification

Information on NI training programs for application development proficiency.