Product Introduction
Земля NI PXIe-6259 is a high-performance PXI Express multifunction I/O module designed for data acquisition, laboratory automation, research, design verification, manufacturing test, and automated measurement systems.
The PXIe-6259 combines 32 аналоговых входных канала, 16-bit ADC resolution, sampling rates up to 1.25 MS/s on a single channel, 4 analog outputs, 48 digital I/O lines, и two 32-bit counter/timers in a single PXI Express module.
As part of the NI M Series multifunction DAQ family, the PXIe-6259 provides analog input, analog output, correlated digital I/O, counter/timer functionality, and hardware triggering within one modular instrument, making it suitable for mixed-signal automated test and measurement applications.
Product Overview
Земля National Instruments PXIe-6259 is designed for engineers who require multiple measurement and control functions within a single PXI Express slot.
Its analog input subsystem provides 32 single-ended or 16 differential input channels with 16-bit resolution. The maximum single-channel sampling rate is 1.25 MS/s, while multichannel acquisition supports an aggregate rate of up to 1 MS/s.
In addition to analog acquisition, the module provides four analog outputs, 48 digital I/O lines, two 32-bit counter/timers, and flexible analog and digital triggering resources.
Key Features
32 Analog Input Channels
The PXIe-6259 provides a high channel count for acquiring multiple analog signals within a single PXI Express module.
- 32 single-ended analog input channels
- 16 differential analog input channels
- 16-bit ADC resolution
- DC input coupling
- Multiple programmable input ranges
- Multiplexed analog acquisition architecture
Advantage: The 32-channel architecture allows engineers to monitor a large number of voltage signals without requiring multiple DAQ modules.
16-Bit Analog Input Resolution
The PXIe-6259 uses a 16-bit analog-to-digital converter for general-purpose measurement applications.
- 16-bit ADC
- No missing codes guaranteed
- Accurate voltage measurements
- Suitable for laboratory and production testing
Advantage: 16-bit resolution provides a practical balance between measurement resolution and acquisition speed for general-purpose DAQ applications.
Up to 1.25 MS/s Sampling Rate
The analog input subsystem supports high-speed acquisition for dynamic and automated measurements.
- 1.25 MS/s maximum single-channel sample rate
- 1.00 MS/s maximum aggregate multichannel sample rate
- 50 ns timing resolution
- Hardware-timed acquisition
- Continuous data acquisition
Advantage: The sampling performance allows the PXIe-6259 to capture faster-changing signals than lower-speed general-purpose DAQ modules.
4 Analog Output Channels
The PXIe-6259 provides four analog output channels for generating programmable voltage signals.
- 4 analog outputs
- 16-битное разрешение ЦАП
- Programmable voltage generation
- Waveform output
- Device-under-test stimulation
- Closed-loop test applications
Advantage: Integrated analog outputs allow one module to both acquire signals and provide analog stimulus to a device under test.
48 Digital I/O Lines
The PXIe-6259 provides 48 digital I/O lines for control, monitoring, and digital communication applications.
- 48 digital I/O lines
- Digital input and output functionality
- Correlated digital I/O
- Hardware-timed digital operations
- Device control
- Digital state monitoring
Advantage: The large number of digital lines enables the PXIe-6259 to control relays, monitor logic states, communicate with digital devices, and coordinate automated test fixtures.
Correlated Digital I/O
The PXIe-6259 supports correlated digital I/O for applications requiring hardware-timed digital signals.
- Hardware-timed digital acquisition
- Hardware-timed digital generation
- Digital waveform synchronization
- Mixed analog and digital testing
Advantage: Correlated digital I/O allows digital operations to be synchronized with analog measurements and other hardware events.
Two 32-Bit Counter/Timers
The module includes two general-purpose 32-bit counter/timers for timing and frequency measurement applications.
- 2 × 32-bit counter/timers
- Frequency measurement
- Period measurement
- Pulse-width measurement
- Подсчет событий
- Генерация импульсов
- Приложения кодировщика
Advantage: Integrated counters reduce the need for dedicated timing hardware in many automated test applications.
Analog and Digital Triggering
The PXIe-6259 provides hardware triggering capabilities for deterministic measurement and generation tasks.
- Analog triggering
- Digital triggering
- Start triggers
- Reference triggers
- Аппаратная синхронизация
- Event-based acquisition
Advantage: Hardware triggering allows measurements to begin or respond precisely to external events.
PXI Express Integration
The PXIe-6259 uses the PXI Express platform for integration into modular automated test systems.
- PXI Express peripheral module
- PXI Express chassis compatibility
- PXI Express hybrid slot compatibility
- PXI trigger resources
- Multi-instrument synchronization
Advantage: PXI Express integration allows the module to operate alongside oscilloscopes, switches, digital instruments, RF modules, and other DAQ hardware within one test platform.
NI-DAQmx Software Support
The PXIe-6259 is supported by the NI-DAQmx driver for hardware configuration, measurement, signal generation, triggering, and application development.
- NI-DAQmx driver
- Интеграция LabVIEW
- NI MAX configuration
- Разработка на C/C++
- .NET application development
- Automated test integration
Technical Specifications
| Параметр | Описание |
|---|---|
| Product Type | PXI Express Multifunction I/O Module |
| Модель | NI PXIe-6259 |
| Product Family | NI M Series Multifunction DAQ |
| Шинный интерфейс | PXI Express |
| Analog Inputs | 32 Single-Ended / 16 Differential |
| ADC Resolution | 16 Bit |
| Maximum Single-Channel Sample Rate | 1,25 МСм/с |
| Maximum Multichannel Sample Rate | 1.00 MS/s Aggregate |
| AI Timing Resolution | 50 ns |
| Input Coupling | DC |
| Analog Outputs | 4 |
| Analog Output Resolution | 16 Bit |
| Цифровой ввод-вывод | 48 Lines |
| Correlated Digital I/O | Supported |
| Counter/Timers | 2 |
| Counter Resolution | 32 Bit |
| Analog Triggering | Supported |
| Digital Triggering | Supported |
| Driver | НИ-DAQmx |
| Product Status | No Longer Available from NI |
| Recommended Replacement | NI PXIe-6363 |
| Primary Applications | Data Acquisition, Laboratory Automation, Research, Design Validation and Manufacturing Test |
Analog Input Performance
The PXIe-6259 analog input subsystem is designed for multiplexed voltage measurements across a large number of channels.
Users can configure up to 32 single-ended inputs или 16 differential inputs depending on signal source and measurement requirements.
For a single analog input channel, the maximum sampling rate is 1,25 МСм/с. When acquiring multiple channels, the maximum aggregate sampling rate is 1.00 MS/s.
This architecture makes the PXIe-6259 particularly suitable for applications where many signals must be acquired at moderate-to-high sampling rates.
Analog Output Capabilities
Four integrated analog output channels allow the PXIe-6259 to generate voltage signals while simultaneously performing other DAQ operations.
- Device stimulus generation
- Control voltage generation
- Automated test sequences
- Closed-loop control experiments
- Waveform generation
Combining analog input and output functionality within one module simplifies mixed-signal test system architecture.
Digital I/O and Counter/Timer Functions
In addition to analog measurement, the PXIe-6259 provides extensive digital and timing resources.
Its 48 digital I/O lines can be used for fixture control, logic monitoring, digital communication, and hardware-timed digital operations.
Two integrated 32-bit counter/timers provide additional capabilities for frequency, period, pulse, event, and encoder measurements.
Software Ecosystem
The NI PXIe-6259 is supported by the NI-DAQmx software ecosystem for configuration, data acquisition, signal generation, and automated test development.
- NI-DAQmx: Provides hardware drivers and APIs for analog input, analog output, digital I/O, counters, triggering, and timing.
- LabVIEW: Enables graphical development of data acquisition, control, monitoring, and automated measurement applications.
- NI MAX: Provides hardware discovery, device configuration, self-test, and basic measurement functionality.
- TestStand: Allows PXIe-6259 measurements and control operations to be incorporated into automated validation and manufacturing test sequences.
- C/C++ and .NET: Allow development of custom DAQ and automated test applications through NI-DAQmx APIs.
Industries
- Automated Test Equipment
- Electronics Manufacturing
- Industrial Measurement
- Исследовательские лаборатории
- Universities and Education
- Design Verification
- Product Validation
- Laboratory Automation
Applications
Laboratory Data Acquisition
The PXIe-6259 provides multiple analog, digital, and timing functions for general laboratory measurement systems.
- Voltage acquisition
- Multi-channel monitoring
- Experiment automation
- Регистрация данных
- Signal generation
Automated Functional Testing
The combination of analog input, analog output, digital I/O, and counter/timer resources makes the module suitable for multifunction automated test stations.
- Electronic device testing
- PCB functional testing
- Automated pass/fail testing
- Mixed-signal validation
- Production test systems
Design Verification and Validation
Engineers can use the PXIe-6259 to acquire and generate signals during product development and design validation.
- Prototype characterization
- Электронное проектирование верификация
- Signal monitoring
- Hardware debugging
- Performance validation
Manufacturing Test
The PXI Express architecture and NI-DAQmx software support make the PXIe-6259 suitable for automated production test environments.
- End-of-line testing
- Functional verification
- Production quality control
- Automated data collection
- Manufacturing test fixtures
Counter and Timing Measurements
The integrated counter/timers can be used for a variety of digital timing measurements.
- Frequency measurement
- Period measurement
- Pulse-width measurement
- Подсчет событий
- Генерация импульсов
- Encoder measurements
Comparison with Similar PXI Multifunction I/O Modules
| Модель | Основное различие | Best Application |
|---|---|---|
| NI PXIe-6259 | 32 AI, 16-bit, up to 1.25 MS/s single-channel sampling, 4 AO and 48 DIO. | Legacy PXI Express multifunction DAQ systems requiring high channel count |
| NI PXI-6259 | Related M Series multifunction DAQ using the legacy PXI bus architecture. | Existing PXI systems and legacy DAQ replacement |
| NI PXIe-6251 | 16 analog inputs, 2 analog outputs and 24 digital I/O for applications requiring fewer channels. | Lower-channel-count multifunction DAQ systems |
| NI PXIe-6363 | Newer X Series replacement with 32 AI, 4 AO, 48 DIO and up to 2 MS/s analog input sampling. | New PXI Express multifunction DAQ designs |
Recommended Related Products
| NI PXIe-6363 | NI-recommended replacement for the PXIe-6259, providing the same 32 AI, 4 AO and 48 DIO channel configuration with higher analog input performance. |
| NI PXI-6259 | PXI version of the M Series multifunction DAQ platform for maintaining existing legacy PXI systems. |
| NI PXIe-6251 | Lower-channel-count M Series PXI Express multifunction I/O module for applications requiring 16 analog inputs. |
Why Choose NI PXIe-6259?
- 32 single-ended or 16 differential analog inputs
- 16-bit analog input resolution
- Up to 1.25 MS/s single-channel sampling
- Up to 1.00 MS/s aggregate multichannel sampling
- 4 аналоговых выходных канала
- 48 digital I/O lines
- Correlated digital I/O capability
- 2 × 32-bit counter/timers
- Analog and digital triggering
- PXI Express system integration
- NI-DAQmx software support
- Suitable for mixed-signal automated testing
- Ideal for maintaining existing M Series PXI Express systems
Frequently Asked Questions
What is the NI PXIe-6259?
The NI PXIe-6259 is a PXI Express multifunction data acquisition module providing analog input, analog output, digital I/O, counter/timer, and triggering functionality for laboratory, research, validation, and manufacturing test systems.
How many analog input channels does the PXIe-6259 have?
The PXIe-6259 provides up to 32 single-ended analog inputs or 16 differential analog inputs.
What is the analog input resolution of the PXIe-6259?
The PXIe-6259 provides 16-bit analog input resolution.
What is the maximum sampling rate of the PXIe-6259?
The maximum analog input sampling rate is 1.25 MS/s when acquiring a single channel. For multichannel acquisition, the maximum aggregate sampling rate is 1.00 MS/s.
How many analog outputs does the PXIe-6259 provide?
The PXIe-6259 provides four analog output channels with 16-bit resolution.
How many digital I/O lines does the PXIe-6259 provide?
The module provides 48 digital I/O lines and supports correlated digital I/O for hardware-timed digital applications.
Does the PXIe-6259 include counter/timers?
Yes. The PXIe-6259 provides two 32-bit general-purpose counter/timers for frequency, period, pulse-width, event counting, pulse generation, and related timing applications.
Does the PXIe-6259 support hardware triggering?
Yes. The module supports both analog and digital triggering for synchronized and event-driven measurement applications.
What software is used with the PXIe-6259?
The PXIe-6259 uses the NI-DAQmx driver and can be integrated with LabVIEW, NI MAX, TestStand, and supported C/C++ or .NET development environments.
Is the NI PXIe-6259 discontinued?
Yes. NI currently lists the PXIe-6259 as Item no longer available. It remains relevant for maintenance, replacement, repair, and expansion of existing PXI Express systems.
What is the recommended replacement for the PXIe-6259?
NI recommends the PXIe-6363 as the replacement for the PXIe-6259. The PXIe-6363 maintains a similar 32 AI, 4 AO, and 48 DIO configuration while increasing the maximum analog input sampling rate to 2 MS/s.
What is the difference between PXI-6259 and PXIe-6259?
Both belong to the NI M Series multifunction DAQ family and provide similar analog, digital, and counter/timer functionality. The primary difference is the system interface: PXI-6259 is designed around the conventional PXI architecture, while PXIe-6259 uses the PXI Express interface.
Should I buy PXIe-6259 or PXIe-6363?
For a new test system, the PXIe-6363 is generally the preferred choice because it is the NI-recommended replacement and provides higher analog input sampling performance. The PXIe-6259 is primarily suitable when maintaining an existing system that specifically requires the original M Series hardware configuration.
Заключение
Земля NI PXIe-6259 Multifunction I/O Module is a versatile M Series PXI Express DAQ device combining 32 analog inputs, 16-bit resolution, up to 1.25 MS/s single-channel sampling, four analog outputs, 48 digital I/O lines, two 32-bit counter/timers, and analog and digital triggering. Although NI no longer offers the PXIe-6259 as a current product, it remains important for replacement, maintenance, and expansion of installed PXI Express data acquisition and automated test systems. For new designs, the NI-recommended replacement is the PXIe-6363.
