The National Instruments PXI-6221 is a low-cost multifunction M Series data acquisition (DAQ) board optimized for cost-sensitive applications. Also consider the high-speed M Series devices for 5X faster sampling rates or the high-accuracy M Series devices for 4X resolution and superior measurement accuracy.
Low-cost M Series devices incorporate advanced features such as the NI-STC 2 system controller, NI-PGIA 2 programmable amplifier, and NI-MCal calibration technology to increase performance and accuracy. To learn more about M Series technologies, device specifications, and information on recommended cables and accessories, please refer to the data sheet and specifications.
Driver Software M Series devices work with multiple operating systems using three driver software options including NI-DAQmx, NI-DAQmx Base, and the Measurement Hardware DDK. Browse the information in the Resources tab to learn more about driver software or download a driver. M Series devices are not compatible with the Traditional NI-DAQ (Legacy) driver.
Application Software Every M Series data acquisition device includes a copy of NI LabVIEW SignalExpress so you can quickly acquire, analyze, and present data without programming. In addition to LabVIEW SignalExpress, M Series data acquisition devices are compatible with the following versions (or later) of NI application software – LabVIEW 7.x, LabWindows™/CVI 7.x, or Measurement Studio 7.x; or LabVIEW with the LabVIEW Real-Time Module 7.1. M Series data acquisition devices are also compatible with Visual Studio .NET, C/C++, and Visual Basic 6.
Quadrature encoder
,
Digital
,
Frequency
,
Voltage
Isolation Type
None
RoHS Compliant
Yes
Analog Input
Channels
16
,
8
Single-Ended Channels
16
Differential Channels
8
Resolution
16 bits
Sample Rate
250 kS/s
Max Voltage
10 V
Maximum Voltage Range
-10 V
-
10 V
Maximum Voltage Range Accuracy
3100 µV
Maximum Voltage Range Sensitivity
97.6 µV
Minimum Voltage Range
-200 mV
-
200 mV
Minimum Voltage Range Accuracy
112 µV
Minimum Voltage Range Sensitivity
5.2 µV
Number of Ranges
4
Simultaneous Sampling
No
On-Board Memory
4095 samples
Analog Output
Channels
2
Resolution
16 bits
Max Voltage
10 V
Maximum Voltage Range
-10 V
-
10 V
Maximum Voltage Range Accuracy
3230 µV
Minimum Voltage Range
-10 V
-
10 V
Minimum Voltage Range Accuracy
3230 µV
Update Rate
833 kS/s
Current Drive Single
5 mA
Digital I/O
Bidirectional Channels
24
Input-Only Channels
0
Output-Only Channels
0
Timing
Software
,
Hardware
Clocked Lines
8
Maximum Clock Rate
1 MHz
Logic Levels
TTL
Input Current Flow
Sinking
,
Sourcing
Output Current Flow
Sinking
,
Sourcing
Programmable Input Filters
Yes
Supports Programmable Power-Up States?
Yes
Current Drive Single
24 mA
Current Drive All
448 mA
Watchdog Timer
No
Supports Handshaking I/O?
No
Supports Pattern I/O?
Yes
Maximum Input Range
0 V
-
5 V
Maximum Output Range
0 V
-
5 V
Counter/Timers
Counters
2
Number of DMA Channels
2
Buffered Operations
Yes
Debouncing/Glitch Removal
Yes
GPS Synchronization
No
Maximum Range
0 V
-
5 V
Max Source Frequency
80 MHz
Pulse Generation
Yes
Resolution
32 bits
Timebase Stability
50 ppm
Logic Levels
TTL
Physical Specifications
Length
16 cm
Width
10 cm
I/O Connector
68-pin VHDCI female
Timing/Triggering/Synchronization
Triggering
Digital
Synchronization Bus (RTSI)
Yes
NI PXI-6221 Packages
To use the NI PXI-6221 , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.
Roll over the icons below to learn why you need each item in the system
Choose from hundreds of specialized instruments to create a PXI System that suits your measurement needs and can scale for future applications. Then, we'll help you choose the right hardware and software to complete your configuration.
Add More Measurements and I/O Modules Use the PXI Advisor to choose from a variety of modules including analog I/O, digital I/O, switching and more. Then, complete and price the PXI System.
Preview a Complete System View and price a complete PXI configuration including the NI PXI-6221, chassis, and controller. Starting from the default configuration, you can add modules, accessories, and software and customize your system.
Since your device does not have direct signal connectivity, you need a connector block to act as an interface between your sensors/signals and your device. A connector block provides easy access to the inputs and outputs of your hardware.
You need a cable to transmit signals between your device and your signal connections on your connector block.
The chassis provides rugged, modular housing for the controller and modules and contains the high-performance PXI backplane, which includes the system's data, timing, and triggering buses.
The controller runs your application and interfaces with your PXI modules.
You need software to interface with your hardware and to collect, analyze, present, and store your measurements. This board is compatible with a variety of programming languages, including LabVIEW, C/C++, Visual Basic, and .NET. LabVIEW provides the easiest integration with all of your NI hardware and is recommended to maximize your hardware investment.
You have selected United States as the country where you will use the product(s)
(change).
System Assurance Programs
Reduce your setup time and total cost of ownership, and get a system you can use out of the box with National Instruments system assurance programs. System assurance programs include:
Installation and integration test of all individual hardware
Courtesy installation of system driver sets and application development environments
Extended warranty and calibration coverage for up to five years
Custom documentation plus a custom restore and startup utility
This service is only available for PXI, NI CompactRIO, and NI Compact FieldPoint systems.
National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:
Significant cost savings compared to individual repair incidents
Fault location, diagnostics, and repair by NI any time the system product fails
All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications
NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.
Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.
