PCI-7342
May 16, 2026

PCI-7342

Model: PCI‑7342 Brand: NI (National Instruments) Type: 2-axis high-performance stepper/servo motion control PCI card Bus: 32-bit 5V PCI Connector: 1 × 68-pin VHDCI Driver: NI-Motion, LabVIEW Motion Status: Out of Production (EOL), recommended as a replacement for PCIe‑7342 Core Overview PCI‑7342 is a 2-axis high-end motion controller, belonging to the 734x series along with PCI‑7340. The architecture is the same (32-bit CPU + ADSP‑2185 DSP + FPGA), but the number of axes is reduced to 2, suitable for dual-axis linkage, high-speed, and high-precision equipment such as XY platforms, gantries, laser cutting, dual-axis positioning, servo/stepper testing, etc. The board is equipped with abundant motion I/O + analog I/O + general-purpose DIO, supporting 3D interpolation, electronic gearing, contour control, and board-level independent operation.

Description

Main Parameters (Chinese Version - Simplified)

1. Motion Control (Number of Axes)

2. Axis Independent / Linked Control (Stepper or Servo, Software Option)

Control Mode:

Open Loop: Stepper (Pulse / Direction or CW/CCW, Up to 4 MHz / Axis)

Closed Loop: Servo (Encoder A/B/Z Phase, Up to 20 MHz)

Interpolation Function: 3D Linear / Arc Interpolation, Spiral Interpolation, Electronic Gear, Profile Control

Motion Type: Point-to-Point, Continuous Trajectory, Jog, Zero Return, Soft Limit, Multi-task Onboard Program

PID Closed Loop: Update Rate 62.5 μs ~ 500 μs, Supports PIVff Feedback

2. I/O Resources

Motion-Specific I/O (Per Axis): Positive/Negative Limit, Origin, Alarm, Enable, Breakpoint Output, Trigger Input

General Digital I/O: 32 TTL DI/DO (4×8-bit, Configurable Direction/Polarity, 24 mA Drive)

Analog Input (AI): 4 Single-ended, 12-bit, ±10 V, 50 μs Scan Rate

Analog Output (AO): 4 Channels, 16-bit, ±10 V

PWM Output: 2 Channels, 32 kHz, 8-bit

3. Performance Indicators

Processor: 32-bit MC68331 CPU + ADSP‑2185 DSP + FPGA, Hard Real-Time

Synchronization Precision: Multi-Axis Synchronization Error < 1 μs, Supports RTSI Bus Multi-Card Synchronization

Trajectory Smoothness: S Curve Acceleration and Deceleration, Stepper Smoothing Algorithm

Onboard Programming: Embedded Motion Program, Can Run Independently from Host

4. Electrical and Environmental

Power Supply: +5 V @ 1 A; +12 V @ 30 mA; -12 V @ 30 mA, Total Power Consumption 5.7 W

Operating Temperature: 0 ~ 55 °C

Size: Standard Half-Length PCI Card (175 × 99 mm)

5. Typical Applications

XY Precision Positioning Platform, Gantry System, Dual-Axis Laser Cutting / Engraving

Dual-Axis Servo / Stepper Test, Motion Simulation

Optical Platform, Microscope Precise Control

Small CNC Machine, Automated Assembly Dual-Axis Module

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