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National Instruments 622 Series

National Instruments 622 Series
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DAQ M Series
M Series User Manual
NI 622x, NI 625x, and NI 628x Multifunction I/O
Modules and Devices
M Series User Manual
July 2016
371022L-01

Table of Contents

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National Instruments 622 Series Specifications

General IconGeneral
Resolution16-bit
Output Range±10 V
Input Channels16
Sampling Rate250 kS/s
Analog Output Channels2
Bus InterfacePCI, PCI Express, or USB (depending on model)
Operating Temperature0 °C to 50 °C
Max Sample Rate250 kS/s
Input Range±10 V
Connector TypeBNC
Bus TypePCI, PCI Express, or USB (depending on model)

Summary

Getting Started

Safety Guidelines

General safety precautions for operating M Series devices and modules.

Installation

Steps for installing software and hardware for M Series devices.

Device Self-Calibration

Procedure for self-calibrating M Series devices after installation and temperature changes.

Getting Started with M Series PCI Express Devices and the Disk Drive Power Connector

Information on connecting the disk drive power connector for M Series PCI Express devices.

Getting Started with M Series USB Devices

Information on features and best practices for M Series USB devices.

DAQ System Overview

DAQ Hardware

Overview of DAQ hardware functions like signal digitization and I/O control for M Series devices.

Cables and Accessories

Description of cables and accessories available for M Series devices and their connector types.

Signal Conditioning

Explanation of signal conditioning for sensors and transducers used with M Series devices.

Programming Devices in Software

Information on using NI-DAQmx driver software to program M Series measurement devices.

Connector and LED Information

IO Connector Signal Descriptions

Details of signals found on the I/O connectors of M Series devices.

+5 V Power Source

Information on the +5 V terminals for powering external circuitry and their ratings.

LED Patterns

Explanation of the behavior of ACTIVE and READY LEDs on M Series USB devices.

Analog Input

Analog Input Range

Explanation of input ranges and their effect on M Series device resolution and accuracy.

Analog Input Ground-Reference Settings

Description of Differential, RSE, and NRSE modes for M Series analog input ground-reference settings.

Multichannel Scanning Considerations

Issues to consider for accurate multichannel scanning in M Series devices, focusing on settling time.

Analog Input Data Acquisition Methods

Overview of software-timed and hardware-timed acquisition methods for analog input.

Analog Input Triggering

Explanation of analog input triggering actions: Start, Reference, and Pause triggers.

Connecting Analog Input Signals

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

Field Wiring Considerations

Recommendations for minimizing noise pickup and maximizing measurement accuracy in analog signal routing.

Analog Input Timing Signals

Summary of timing options provided by the analog input timing engine.

Analog Output

AO Offset and AO Reference Selection

How to set AO range by configuring offset and reference selection for M Series devices.

Minimizing Glitches on the Output Signal

Explanation of output signal glitches and methods to minimize them using deglitching filters.

Analog Output Data Generation Methods

Overview of software-timed and hardware-timed generation methods for analog output.

Hardware-Timed Generations

Details on hardware-timed generation, including buffered operations and sample modes.

Analog Output Triggering

Explanation of analog output triggering actions: Start and Pause triggers.

Analog Output Timing Signals

Summary of AO waveform generation timing signals.

Digital IO

Static DIO

Using DIO lines for static digital input or output, individually configurable.

Digital Waveform Triggering

Methods for triggering digital waveform acquisition or generation using sample clocks.

Digital Waveform Acquisition

Acquiring digital waveforms on Port 0 DIO lines, storing samples in FIFO.

Digital Waveform Generation

Generating digital waveforms on Port 0 DIO lines using DO Sample Clock.

IO Protection

Protection against overvoltage, undervoltage, overcurrent, and ESD events for DIO and PFI signals.

Programmable Power-Up States

Setting programmable power-up states for PFI and DIO lines.

DI Change Detection

Configuring DAQ device to detect changes in DIO signals and trigger events.

Connecting Digital IO Signals

How to individually program DIO lines as input or output, including TTL signals.

Counters

Counter Input Applications

Lists various counter input applications like Counting Edges, Pulse-Width Measurement, etc.

Counting Edges

Counting edges on Source input after counter is armed, with options for single point or buffered.

Pulse-Width Measurement

Measuring pulse width on Gate input signal using Source input for counting edges.

Period Measurement

Measuring the period on Gate input signal by counting Source edges between two active edges.

Semi-Period Measurement

Measuring a semi-period on Gate input signal by counting Source edges between two consecutive edges.

Frequency Measurement

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

Position Measurement

Performing position measurements using quadrature encoders or two-pulse encoders.

Counter Output Applications

Lists counter output applications like Simple Pulse Generation, Pulse Train Generation, etc.

Counter Timing Signals

Details on counter timing signals such as Source, Gate, Aux, and HW Arm.

Default CounterTimer Pinouts

Default NI-DAQmx counter/timer pin assignments for various M Series devices.

Counter Triggering

Explanation of counter triggering actions: Arm Start Trigger, Start Trigger, and Pause Trigger.

Other Counter Features

Additional counter features like Cascading Counters, Counter Filters, Prescaling, and Duplicate Count Prevention.

Synchronization Modes

Describes synchronization modes like 80 MHz Source Mode, Other Internal Source Mode, and External Source Mode.

PFI

Using PFI Terminals as Timing Input Signals

Routing external timing signals to M Series functions using PFI terminals.

Exporting Timing Output Signals Using PFI Terminals

Routing timing signals to PFI terminals configured as outputs.

Using PFI Terminals as Static Digital IOs

Configuring PFI terminals as static digital inputs or outputs.

Connecting PFI Input Signals

How to connect external PFI sources to M Series devices, referencing D GND.

PFI Filters

Enabling programmable debouncing filters on PFI, RTSI, or PXI_STAR signals for counter inputs.

IO Protection

Protection against overvoltage, undervoltage, overcurrent, and ESD events for DIO and PFI signals.

Programmable Power-Up States

Setting programmable power-up states for PFI and DIO lines.

Digital Routing and Clock Generation

Clock Routing

Overview of clock routing circuitry and its main functions in M Series devices.

80 MHz Timebase

Use of 80 MHz Timebase as Source input for counter/timers and its generation sources.

20 MHz Timebase

Role of 20 MHz Timebase in generating AI and AO timing signals and as Source input.

100 kHz Timebase

Use of 100 kHz Timebase for AI and AO timing signals and as Source input.

External Reference Clock

Using external reference clock to synchronize internal timebases on M Series devices.

10 MHz Reference Clock

Synchronizing other devices to M Series devices using the 10 MHz reference clock.

Synchronizing Multiple Devices

Methods for synchronizing multiple M Series devices using PXI/PXI Express, PCI/PCI Express, and USB devices.

Real-Time System Integration (RTSI)

Set of bused signals for driving timing engines and sharing triggers among devices.

RTSI Connector Pinout

Pinout diagram and signal descriptions for the RTSI connector on PCI/PCI Express devices.

Using RTSI as Outputs

Driving various signals to RTSI terminals when configured as outputs.

Using RTSI Terminals as Timing Input Signals

Routing external timing signals to M Series functions using RTSI terminals.

RTSI Filters

Enabling programmable debouncing filters on PFI, RTSI, or PXI_STAR signals for counter inputs.

PXI Clock and Trigger Signals

Information on PXI clock and trigger signals available on PXI/PXI Express devices.

Bus Interface

Data Transfer Methods

Overview of bus interface data transfer methods for M Series devices.

PCIPCI Express Device and PXIPXI Express Module Data Transfer Methods

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

USB Device Data Transfer Methods

Methods for transferring data across the USB bus using USB Signal Stream and Programmed I/O.

PXI Considerations

Specific considerations for PXI devices, including clock and trigger signals and compatibility.

PXI and PXI Express

Information on installing NI PXI M Series devices in PXI and PXI Express chassis.

Using PXI with CompactPCI

Using PXI-compatible products with standard CompactPCI products and operational considerations.

Triggering

Triggering with a Digital Source

Generating triggers on digital signals by specifying source and edge.

Triggering with an Analog Source

Generating triggers on analog signals using APFI terminals or analog input channels.

APFI 0,1 Terminals

Using APFI terminals as analog triggers, noting impedance and crosstalk considerations.

Analog Input Channels

Using analog input channels to drive the NI-PGIA for analog trigger detection.

Analog Trigger Actions

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

Routing Analog Comparison Event to an Output Terminal

Routing the Analog Comparison Event signal to PFI or RTSI terminals.

Analog Trigger Types

Different analog trigger modes: Edge Triggering, Hysteresis, and Window Triggering.

Analog Trigger Accuracy

Methods to improve analog trigger accuracy, including AI channel usage and software calibration.

Appendix A ModuleDevice-Specific Information

NI 6220

Pinout diagram for the PCI/PXI-6220 device.

NI 6221 (68-Pin)

Pinout diagram for the PCI/PXI-6221 (68-Pin) device.

NI PCI-6221 (37-Pin)

Pinout diagram for the PCI-6221 (37-Pin) device.

NI 6224

Pinout diagram for the PCI/PXI-6224 device.

NI 6225

Pinout diagram for the PCI/PXI-6225 device.

NI 6229

Pinout diagram for the NI PCI/PCIe/PXI/PXIe-6259 device.

NI 6250

Pinout diagram for the PCI/PXI-6250 device.

NI 6251

Pinout diagram for the NI PCI/PCIe/PXI/PXIe-6251 device.

NI 6254

Pinout diagram for the PCI/PXI-6254 device.

NI 6255

Pinout diagram for the PCI/PXI-6255 device.

NI 6259

Pinout diagram for the NI PCI/PCIe/PXI/PXIe-6259 device.

NI 6280

Pinout diagram for the PCI/PXI-6280 device.

NI 6281

Pinout diagram for the PCI/PXI-6281 device.

NI 6284

Pinout diagram for the PCI/PXI-6284 device.

NI 6289

Pinout diagram for the PCI/PXI-6289 device.

Appendix B Timing Diagrams

Analog Input Timing Diagrams

Detailed timing information and diagrams for analog input triggers and clock signals.

Input Timing

Delays involved in importing external signals for triggers or clocks in the AI timing engine.

Internal Timing

Timing levels controlling analog-to-digital conversions and sample timing.

Convert Clock

Signal determining when analog-to-digital conversion is started, affecting ADC and I/O terminals.

Sample Clock

Signal indicating the start of a sample, generated from external or internal sources.

Pause Trigger

Signal used to pause acquisition by internal or external sources.

Output Timing

Delays involved in exporting internal signals to external terminals for triggering or timing.

Analog Output Timing Diagrams

Timing diagrams for analog output operations, covering input, internal, and output timing.

Digital IO Timing Diagrams

Timing delays and requirements for digital waveform acquisitions and generations.

Counters Timing Diagrams

Input delays, requirements, output delays, gating modes, and encoder timing for counters.

Appendix C Troubleshooting

Analog Input

Addresses common analog input issues like crosstalk, ghost voltages, and random drift.

Analog Output

Discusses minimizing glitches on the analog output signal.

Counters

Addresses issues with buffered counter measurements and signal connections.

M Series Installation Issues

Troubleshooting device detection issues with MAX or the operating system.

Appendix D Upgrading from E Series to M Series

M Series and E Series Pinout Comparison

Compares pinouts of 68-pin M Series and E Series devices, noting enhanced functionality.

Appendix E Where to Go from Here

Example Programs

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

Related Documentation

References to documentation for M Series devices, including DAQ Getting Started Guides and Specifications.

M Series Documentation

Guides for installation, configuration, and specifications for M Series devices.

NI-DAQmx for Windows

Information on NI-DAQmx support for devices, ADEs, and applications on Windows.

NI-DAQmx for Linux

Guides for installing and configuring NI-DAQmx for Linux, noting device support.

NI-DAQmx Base (LinuxMac OS X)

Guides for installing and configuring NI-DAQmx Base for Linux and Mac OS X.

LabVIEW

Resources for learning LabVIEW programming concepts and NI-DAQmx integration.

LabWindowsCVI

Information on creating measurement tasks using DAQ Assistant in LabWindows/CVI.

Measurement Studio

Using Measurement Studio with Visual C# or Visual Basic .NET for NI-DAQmx applications.

NI Services

Services and Resources

Overview of NI services including Maintenance, Calibration, and System Integration support.

Maintenance and Hardware Services

NI's offerings for system accuracy, reliability, warranty, sparing, and calibration services.

System Integration

Assistance from NI Alliance Partners for projects with time constraints or technical resource limitations.

Training and Certification

Information on NI training and certification programs to enhance application development proficiency.

Technical Support

Resources for technical support, including KnowledgeBase, forums, and software support memberships.

Declaration of Conformity (DoC)

Claim of compliance with European Communities regulations for electromagnetic compatibility and product safety.

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