Product Introduction
The NI PXIe-6341 is an X Series multifunction data acquisition module designed for automated testing, industrial measurement, laboratory research, and control applications. It combines analog input, analog output, digital I/O, counter/timer functions, triggering, and PXI Express synchronization resources in one compact modular instrument.
With 16 single-ended or eight differential analog input channels, 16-bit resolution, and a maximum aggregate sampling rate of 500 kS/s, the PXIe-6341 provides a flexible platform for acquiring voltage signals from sensors, electronic devices, and industrial equipment.
Product Overview
The PXIe-6341 belongs to the NI X Series multifunction I/O family. It is designed for general-purpose applications that require analog measurement, waveform generation, digital control, event counting, encoder measurement, and hardware-timed automation.
The analog input subsystem uses a multiplexed architecture and supports multiple programmable voltage ranges. This allows the module to measure both lower-level and general-purpose voltage signals while maintaining flexible channel configuration.
In addition to analog acquisition, the PXIe-6341 provides two analog output channels, 24 programmable digital I/O lines, four 32-bit counter/timers, analog triggering, digital triggering, and PXI Express timing resources.
The module is supported by NI-DAQmx and integrates with LabVIEW, NI MAX, TestStand, and supported text-based programming environments, helping engineers create scalable automated test and measurement systems.
Key Features
Flexible Analog Input Configuration for Multi-Signal Measurement
The PXIe-6341 supports single-ended and differential input configurations for measuring voltage signals from different sources.
- 16 single-ended analog input channels
- 8 differential analog input channels
- 16-bit analog-to-digital conversion
- 500 kS/s maximum aggregate sampling rate
- DC-coupled analog acquisition
Advantage: Flexible channel configuration allows engineers to prioritize either channel count or differential noise rejection according to the measurement environment.
Programmable Input Ranges for Improved Measurement Flexibility
The PXIe-6341 supports several selectable analog input ranges for signals with different amplitudes.
- ±0.2 V input range
- ±1 V input range
- ±5 V input range
- ±10 V input range
- High input impedance
Advantage: Programmable ranges help match the measurement span to the expected signal level, improving effective resolution for lower-amplitude signals.
Two Analog Outputs for Waveform Generation and Control
The PXIe-6341 includes two analog output channels for generating voltage signals, stimulating devices, and controlling external equipment.
- 2 analog output channels
- 16-bit digital-to-analog conversion
- Up to 900 kS/s with one active channel
- Up to 840 kS/s per channel with two active channels
- ±10 V output range
Advantage: Integrated analog outputs allow one module to generate test stimuli while simultaneously acquiring the response of the device under test.
24 Programmable Digital I/O Lines
The PXIe-6341 provides digital resources for device control, status monitoring, triggering, and automated test sequencing.
- 24 programmable digital I/O lines
- Individually configurable input or output direction
- 8 hardware-timed lines on Port 0
- Static digital input and output
- Digital waveform acquisition and generation
Advantage: The integrated digital subsystem reduces the need for a separate digital control module in mixed-signal test systems.
Four 32-Bit Counter/Timers for Timing and Motion Applications
The PXIe-6341 includes four general-purpose counter/timers for event measurement, pulse generation, frequency analysis, and encoder acquisition.
- Four independent 32-bit counter/timers
- Edge counting
- Pulse-width and period measurement
- Two-edge separation measurement
- Quadrature encoder measurement
- Pulse and pulse-train generation
Advantage: The counter subsystem supports precise timing, motion feedback, PWM generation, event detection, and hardware-controlled automation.
Advanced Triggering and Synchronization
The PXIe-6341 provides analog and digital trigger resources for deterministic acquisition and generation tasks.
- Analog edge triggering
- Analog edge triggering with hysteresis
- Analog window triggering
- Digital start and reference triggers
- Pause triggers
- Retriggerable measurement tasks
Advantage: Flexible triggering helps the system capture important events accurately and coordinate operation with external instruments.
PXI Express Architecture for Scalable Test Systems
The PXIe-6341 uses the PXI Express platform for high-speed communication and synchronized operation with other modular instruments.
- PXI Express bus interface
- DMA-based data transfer
- PXI trigger bus support
- PXI Star and PXIe differential star resources
- NI-STC3 timing and synchronization technology
Advantage: PXI Express integration allows the module to operate with digitizers, switching modules, power instruments, RF instruments, and other DAQ devices in one coordinated test platform.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Type | PXI Express Multifunction I/O Module |
| DAQ Family | NI X Series |
| Part Number | 781052-01 |
| Single-Ended Analog Inputs | 16 Channels |
| Differential Analog Inputs | 8 Channels |
| Analog Input Resolution | 16 Bits |
| Maximum AI Sample Rate | 500 kS/s Aggregate |
| Sampling Architecture | Multiplexed |
| Analog Input Ranges | ±0.2 V, ±1 V, ±5 V, and ±10 V |
| Input Coupling | DC |
| Analog Input Bandwidth | 1.2 MHz |
| Analog Output Channels | 2 Channels |
| Analog Output Resolution | 16 Bits |
| Maximum AO Update Rate | 900 kS/s for One Channel; 840 kS/s per Channel for Two Channels |
| Analog Output Range | ±10 V |
| Digital I/O | 24 Programmable Lines |
| Hardware-Timed Digital I/O | 8 Lines on Port 0, Up to 1 MHz |
| Counter/Timers | Four 32-Bit Counter/Timers |
| Counter Base Clocks | 100 MHz, 20 MHz, and 100 kHz |
| Analog Triggering | Edge, Edge with Hysteresis, and Window Triggering |
| Bus Interface | PXI Express |
| I/O Connector | One 68-Pin VHDCI Connector |
| Driver Support | NI-DAQmx |
| Calibration Interval | 2 Years |
Software Ecosystem
The PXIe-6341 is supported by the NI software ecosystem for configuration, data acquisition, waveform generation, synchronization, analysis, and automated test development.
- NI-DAQmx: Provides hardware configuration, analog and digital acquisition, waveform generation, triggering, timing, synchronization, and programming APIs.
- LabVIEW: Supports graphical development of measurement, automation, control, and signal-processing applications.
- NI MAX: Enables device detection, channel testing, self-calibration, diagnostics, and hardware configuration.
- TestStand: Supports automated test sequencing, result processing, report generation, and manufacturing deployment.
- FlexLogger: Provides configuration-based data logging and test workflows with limited programming requirements.
- Programming APIs: NI-DAQmx can be used with supported C/C++, .NET, Python, and other development environments.
Industries
- Industrial Automation
- Electronics Manufacturing
- Automotive and Transportation
- Aerospace and Defense
- Energy and Power Electronics
- Semiconductor Testing
- Research and Development
- Academic Laboratories
Applications
Automated Electronic Testing
The PXIe-6341 combines signal acquisition, waveform generation, digital control, and hardware timing for automated test platforms.
- Functional verification
- Production testing
- Electronic device characterization
- Manufacturing quality control
Industrial Monitoring and Control
The module can acquire voltage signals from industrial sensors while controlling external equipment through its analog and digital outputs.
- Machine condition monitoring
- Process measurement
- Equipment diagnostics
- Factory automation
Motor, Encoder, and Motion Measurement
The four counter/timers make the PXIe-6341 suitable for timing, frequency, pulse, and position measurement applications.
- Quadrature encoder measurement
- Motor speed monitoring
- Pulse-width measurement
- PWM signal generation
Data Logging and Sensor Acquisition
The PXIe-6341 provides flexible input configurations for recording voltage signals from multiple sensors and test points.
- Voltage monitoring
- Environmental measurement
- Equipment performance logging
- Long-term test recording
Research and Engineering Development
The multifunction architecture provides flexible resources for laboratory experiments, prototype development, and custom instrumentation.
- Prototype validation
- Experimental measurement
- Signal generation and analysis
- Engineering test benches
Comparison with Similar Products
| Model | Main Difference | Best Application |
|---|---|---|
|
NI PXIe-6341 | Provides 16 single-ended or eight differential analog inputs, two analog outputs, 24 digital I/O lines, and four counters. | General-purpose PXI Express measurement and control |
|
NI PXIe-6343 | Provides a higher analog input channel count and expanded connectivity for larger multifunction measurement systems. | Higher-channel-count automated testing |
|
NI PXIe-6345 | Provides up to 80 single-ended or 40 differential analog inputs for high-density sensor and data-logging systems. | Large-scale multiplexed data acquisition |
|
NI PXIe-6349 | Provides 32 dedicated simultaneous analog inputs for applications requiring accurate channel-to-channel timing relationships. | Synchronized multichannel waveform acquisition |
Recommended Related Products
The following products can be combined with the PXIe-6341 to build a complete PXI Express measurement and automated test system.
|
NI PXIe-1092 | Compact PXI Express chassis for modular measurement and automated test systems. |
|
NI PXIe-1095 | High-performance 18-slot PXI Express chassis for larger instrumentation platforms. |
|
NI PXIe-8842 | Embedded PXI Express controller for running acquisition, analysis, and automated test applications. |
|
NI TB-2706 | Front-mount screw-terminal block for direct signal connection to compatible PXI Express DAQ modules. |
|
NI BNC-2110 | Shielded BNC connector block for convenient analog, digital, counter, and timing signal access. |
|
NI SCB-68A | Shielded 68-pin connector block for custom field wiring and signal termination. |
Why Choose PXIe-6341?
- 16 single-ended or eight differential analog input channels
- 16-bit resolution and 500 kS/s aggregate sampling
- Four programmable analog input ranges
- Two waveform-capable analog output channels
- 24 programmable digital I/O lines
- Four 32-bit counter/timers for timing and motion applications
- Advanced analog and digital triggering
- PXI Express timing and synchronization support
- Compact single-connector architecture
- Supported by NI-DAQmx, LabVIEW, NI MAX, and TestStand
Frequently Asked Questions
How many analog input channels does the PXIe-6341 provide?
The PXIe-6341 provides 16 single-ended analog input channels or eight differential analog input channels. Differential mode can improve noise rejection, while single-ended mode provides the maximum channel count.
Does the PXIe-6341 support simultaneous sampling?
No. The PXIe-6341 uses a multiplexed analog input architecture with a maximum aggregate sampling rate of 500 kS/s. Applications requiring dedicated simultaneous sampling on every channel should consider modules such as the PXIe-6349, PXIe-6356, or PXIe-6358.
Which accessories are compatible with the PXIe-6341?
Compatible connectivity options include the SHC68-68 and SHC68-68-EPM cables together with accessories such as the TB-2706, BNC-2110, BNC-2120, SCB-68A, TBX-68, and CB-68LPR.
Conclusion
The NI PXIe-6341 multifunction DAQ module provides a balanced solution for engineers requiring analog acquisition, waveform generation, digital control, counter/timer functions, and advanced triggering in one PXI Express module.
With 16 single-ended or eight differential analog inputs, two analog outputs, 24 digital I/O lines, four counters, PXI Express synchronization, and comprehensive NI software support, the PXIe-6341 is an excellent choice for automated testing, industrial monitoring, motion measurement, data logging, research, and engineering development.
