Product Introduction
Земля NI PXI-6704 is a high-density analog output module designed for PXI-based automated test, industrial control, signal simulation, and laboratory automation systems. It provides 32 independently programmable analog voltage outputs, 16 digital I/O lines, and flexible software-controlled operation, making it ideal for applications requiring multiple precision voltage outputs from a single PXI module.
As a member of the NI 670x analog output family, the PXI-6704 combines high output channel density with reliable DC voltage generation. It is widely used for sensor simulation, electronic calibration, hardware-in-the-loop (HIL) testing, programmable bias generation, and automated manufacturing equipment.
Product Overview
Земля PXI-6704 is optimized for applications requiring a large number of independent analog output channels instead of high-speed waveform generation. Each channel can output programmable DC voltage levels with excellent accuracy and long-term stability.
Besides its 32 analog outputs, the module includes 16 programmable digital I/O lines for equipment control, trigger signaling, status monitoring, and sequencing tasks. The PXI platform enables easy integration with NI DAQ, switching, timing, RF, and motion control modules to build complete automated test systems.
The PXI-6704 is fully supported by NI-DAQmx and integrates seamlessly with LabVIEW, TestStand, NI MAX, C/C++, .NET, Python, and other supported programming environments.
Key Features
32 Independent Analog Voltage Outputs
The PXI-6704 provides a large number of independently programmable voltage outputs for multi-channel control applications.
- 32 analog output channels
- Independent channel control
- Software programmable voltage generation
- Suitable for long-term continuous operation
- Stable DC output performance
Advantage: High channel density allows a single module to replace multiple lower-density analog output devices, reducing system cost and PXI slot usage.
Wide Output Voltage Range
Each analog output supports flexible programmable voltage generation for industrial and laboratory applications.
- Programmable voltage output
- High output accuracy
- Excellent long-term stability
- Low output drift
- Suitable for precision control systems
Advantage: Engineers can generate stable control voltages for sensor simulation, actuator control, calibration, and electronic testing.
Integrated Digital I/O
The PXI-6704 includes digital I/O resources for synchronized equipment control.
- 16 programmable digital I/O lines
- Equipment status monitoring
- Trigger control
- Digital sequencing
- External device interfacing
Advantage: Eliminates the need for an additional digital I/O module in many automated control systems.
Reliable Software-Timed Operation
The module is designed for applications requiring accurate static or slowly changing analog outputs.
- Software-controlled updates
- Excellent output repeatability
- Suitable for DC voltage generation
- Reliable industrial operation
- Simple programming model
Advantage: Ideal for applications where output stability is more important than high-speed waveform generation.
PXI Modular Integration
The PXI-6704 easily integrates with other PXI measurement instruments.
- Standard PXI form factor
- Shared PXI timing resources
- Compatible with PXI controllers
- Expandable modular architecture
- Easy system integration
Advantage: Engineers can build scalable automated test systems by combining the PXI-6704 with DAQ, switching, RF, and instrumentation modules.
Technical Specifications
| Параметр | Описание |
|---|---|
| Product Type | PXI Analog Output Module |
| Module Family | NI 670x Series |
| Analog Output Channels | 32 Voltage Outputs |
| Output Resolution | 16-битный |
| Диапазон выходного напряжения | 0 V to 10 V |
| Тип вывода | Voltage Output |
| Цифровой ввод-вывод | 16 Programmable Digital Lines |
| Update Method | Software Timed |
| Шинный интерфейс | PXI |
| Driver Support | НИ-DAQmx |
| Connector | 68-Pin VHDCI |
| Calibration Interval | 2 Years |
| Operating Temperature | от 0 °C до 55 °C |
Software Ecosystem
The PXI-6704 integrates with the NI software platform for configuration, programming, automation, and system deployment.
- НИ-DAQmx – Device configuration, voltage output programming, and digital I/O control.
- ЛабВью – Graphical development for measurement, automation, and industrial control.
- NI MAX – Hardware detection, diagnostics, calibration, and configuration.
- Тестовая стойка – Automated production and validation test sequencing.
- C/C++, .NET, Python – Text-based application development using NI-DAQmx APIs.
Industries
- Промышленная автоматизация
- Electronics Manufacturing
- Тестирование полупроводников
- Automotive Electronics
- Аэрокосмическая и оборонная промышленность
- Исследовательские лаборатории
- Process Control
- Education and R&D
Applications
Sensor Simulation
Generate multiple programmable voltage outputs to simulate sensors during product validation.
- Pressure sensor simulation
- Temperature transmitter simulation
- Voltage source simulation
- Calibration systems
Industrial Process Control
Provide analog control signals for industrial equipment and automation systems.
- Valve control
- Motor controller input
- PLC analog output
- Автоматизация процессов
Automated Test Equipment
Generate programmable bias voltages and reference signals during electronic testing.
- Functional verification
- Production testing
- Component characterization
- Automated validation
Laboratory Automation
Control laboratory instruments and programmable devices using stable analog outputs.
- Instrument control
- Research automation
- Custom experiments
- Voltage control systems
Comparison with Similar Products
| Модель | Основное различие | Best Application |
|---|---|---|
| NI PXI-6704 | 32 analog voltage outputs with integrated digital I/O. | High-density analog voltage generation |
| NI PXI-6733 | High-speed waveform generation with hardware-timed outputs. | Dynamic analog waveform generation |
| NI PXI-6723 | Fewer analog output channels for medium-density control systems. | General analog output applications |
| NI PXIe-6738 | PXI Express high-speed analog output module with hardware-timed waveform generation. | Modern PXI Express signal generation |
Recommended Related Products
| NI PXI-1042Q | PXI chassis for modular automated measurement systems. |
| NI PXI-8108 | Embedded PXI controller for industrial automation and testing. |
| NI SH68-68-EPM | Shielded cable for connecting PXI analog output modules. |
| NI CB-68LP | 68-pin connector block for field wiring. |
| NI SCB-68A | Shielded terminal block for industrial signal connections. |
Why Choose PXI-6704?
- 32 independently programmable analog voltage outputs
- 16-bit output resolution
- Integrated 16 digital I/O lines
- Stable and accurate DC voltage generation
- Ideal for sensor simulation and industrial control
- PXI modular architecture for scalable systems
- Supported by NI-DAQmx, LabVIEW, and TestStand
- Excellent solution for automated test and control applications
Frequently Asked Questions
What is the PXI-6704 primarily used for?
The PXI-6704 is designed for high-density analog voltage generation in industrial automation, sensor simulation, automated testing, and laboratory control systems.
Does the PXI-6704 support analog input measurements?
No. The PXI-6704 is an analog output module. It generates programmable voltage outputs but does not provide analog input acquisition functionality.
Can the PXI-6704 be synchronized with other PXI instruments?
Yes. The PXI-6704 can be integrated with other PXI modules, including DAQ, switching, RF, and timing devices, to build synchronized automated test systems.
Заключение
Земля NI PXI-6704 Analog Output Module is an excellent choice for engineers who require a large number of accurate analog voltage outputs in a compact PXI platform. With 32 output channels, integrated digital I/O, seamless NI software support, and flexible PXI integration, it provides an efficient solution for industrial automation, sensor simulation, production testing, and laboratory instrumentation.
