Email: sales@slxytech.com
WhatsApp / Wechat：8617062388866
Phone：+86 17062388866Description
The NI PXI-7344 is a high-performance 4-axis motion controller from National Instruments’ PXI platform, engineered for precision automation and test systems requiring nanosecond-level synchronization. Designed for complex multi-axis coordination, this controller integrates a dedicated FPGA (Xilinx Spartan-3) for custom motion profiling and real-time control loops. The PXI-7344 supports stepper, servo, and linear motors with advanced features like electronic gearing, camming, and position-locked output triggering. Its deterministic operation synchronizes motion with analog/digital I/O and vision systems via PXI backplane timing, achieving <500ns>NI PXI-7344 delivers µm-repeatability for semiconductor wafer handling, optical alignment, and robotic test stands, bridging the gap between industrial motion control and high-speed measurement.
NI PXI-7344
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | PXI-7344 |
| Manufacturer | National Instruments |
| Product Type | Multi-Axis Motion Controller |
| Control Axes | 4 |
| Controller Type | FPGA-based (Xilinx Spartan-3 XC3S2000) |
| Feedback Resolution | 32-bit encoder counters |
| Maximum Step Rate | 20 MHz |
| Analog Output | ±10V (16-bit) for servo control |
| Digital I/O | 24 TTL (8 buffered inputs) |
| Motion Interfaces | STP-120, P0 connector |
| Synchronization | PXI trigger bus (<500ns> |
| Programming | LabVIEW, C/C++, .NET |
| Safety Certification | SIL 2 (IEC 61800-5-2) |
| Operating Temperature | 0°C to 55°C |
| Power Requirement | +5V DC (6W typical) |
| Form Factor | PXI 3U, Single-slot |
Main Features and Advantages
FPGA Flexibility: User-programmable logic enables custom trajectory generation, hardware-in-the-loop (HIL) simulation, and fault-response routines without host CPU interaction.
Ultra-Precise Synchronization: Dedicated timebase crystals achieve 50ns timestamp resolution for coordinated motion with DAQ/vision modules. PXI Star Trigger support enables sub-microsecond alignment across instruments.
Advanced Motion Engine: Supports S-curve acceleration, position compare triggers with 100ns latency, and dual-loop control (position/force). Backlash compensation and following error limits enhance precision.
Integrated Safety: Safe Torque Off (STO) via hardware-enforced watchdogs meets machine safety standards. The PXI-7344 logs all motion faults with microsecond timestamps for diagnostics.
Application Field
The PXI-7344 excels in synchronized automation: Semiconductor probe stations use it for wafer alignment with <0>
In aerospace, it controls wing fatigue test actuators with force-feedback algorithms. Biomedical applications include microplate handling in DNA sequencers. The NI PXI-7344 enables physics research with precision mirror positioning in interferometers and telescope adaptive optics.
NI PXI-7344
Related Products
NI PXI-7358: 8-axis controller for expanded coordination
NI MID-7604: Stepper drive compatible with PXI-7344
NI UMI-7774: Breakout box for motor/encoder interfacing
NI PXIe-8880: Controller hosting PXI-7344
NI 7340: Legacy PCI version
NI PXI-6229: Simultaneous DAQ for synchronized data capture
NI SCC-68: Terminal block for I/O expansion
NI PXI-1045: 18-slot chassis with timing slots
