Model Nomenclature

• PXI: 3U PXI modular instrumentation bus

• 8513: NI software‑selectable multi‑protocol CAN interface series

• /1: 1‑port configuration (P/N 780688‑01)

• /2: 2‑port configuration (P/N 780688‑02)NI

Technical Specifications

• Form factor: 3U, single‑slot PXI

• Ports: 1 or 2 × software‑selectable CAN (high‑speed FD / low‑speed fault‑tolerant / single‑wire)NI

• Transceivers:

  • High‑speed: NXP TJA1041/TJA1043 (CAN FD capable)

  • Low‑speed/fault‑tolerant: NXP TJA1054A/TJA1055T

  • Single‑wire: NXP AU5790/ON Semiconductor NCV7356

• Baud rate:

  • CAN FD: Up to 2 Mbps

  • CAN 2.0: Up to 1 Mbps

  • Low‑speed CAN: 40–125 kbps

  • Single‑wire CAN: 33.3–83.3 kbps

• Connectors: 1 or 2 × DB‑9 male (front panel); 2 × SMB (sync for 2‑port model)

• Isolation: 500 Vrms port‑to‑chassis and port‑to‑port

• DMA: Onboard DMA engine, zero CPU interrupt for frame transferNI

• Latency: Typical <50 µs

• Timestamping: 1 µs precision

• Bus voltage range: CAN_H/CAN_L –27 VDC to +40 VDC

• Power: +5 VDC (~640 mA); +3.3 VDC (~940 mA) from PXI backplane

• Operating temperature: 0 °C to 55 °C; storage –20 °C to 70 °C

• Software: NI‑XNET, LabVIEW, LabWindows/CVI, C/C++, Python, VeriStandNI

• OS: Windows 7/10/11, LabVIEW Real‑TimeNI

Interface and Communication Configuration

• Front‑panel DB‑9 male connectors for standard CAN cables; 2‑port model adds SMB sync connectors for multi‑module synchronization

• Each port independently configurable via software for high‑speed FD / low‑speed fault‑tolerant / single‑wire modesNI

• Supports listen‑only mode for passive bus monitoring

• RTSI/PXI trigger bus integration (7 in/out trigger lines, 1 in/out clock line) for precise multi‑device sync

• Termination: Requires external 120 Ω resistors at bus ends (high‑speed); low‑speed/single‑wire networks may omit termination

• Configuration via NI‑MAX or NI‑XNET API; supports DBC/FIBEX/NCD CAN database import

Core Features

• Software‑selectable multi‑protocol: Switch between high‑speed FD, low‑speed fault‑tolerant, and single‑wire CAN without hardware changesNI

• Triple‑transceiver design: Eliminates need for external transceiver modules, reducing system complexityNI

• 500 Vrms isolation: Protects PXI chassis from ground loops and voltage transients

• NI‑XNET DMA: Offloads CAN frame processing from CPU, reducing latency and jitterNI

• Real‑time performance: 1 µs timestamping for accurate event correlation in complex systems

Application Scenarios

• Automotive HIL simulation: Testing ECUs across high‑speed FD, low‑speed body, and single‑wire diagnostic networks

• Multi‑network vehicle testing: Commercial vehicles combining powertrain (FD), body (low‑speed), and diagnostic (single‑wire) CAN

• Industrial automation: Mixed‑speed CAN networks in factory equipment (motion control + sensor monitoring)

• Aerospace and defense: Multi‑protocol CAN systems in avionics and ground vehicles

• Bus monitoring and diagnostics: Unified logging for heterogeneous CAN networks in R&D and productionNI

Usage and Maintenance Instructions

Installation and Configuration

1. Insert the module into any 3U PXI slot and secure the front panel.

2. Connect CAN cables to DB‑9 ports; use SMB sync cables for multi‑module setups.

3. Add 120 Ω termination at both ends of high‑speed CAN buses; low‑speed/single‑wire networks do not require termination.

4. Power on the chassis; Windows automatically detects the hardware.

5. Install the NI‑XNET driver and configure port modes (high‑speed/low‑speed/single‑wire) in NI‑MAX.

6. Develop applications using LabVIEW or C/C++ with the NI‑XNET API.

Daily Maintenance

• Inspect DB‑9/SMB connectors and cables for damage or loose pins.

• Verify proper termination (120 Ω) for high‑speed CAN buses to avoid signal reflection.

• Operate within 0–55 °C; keep the chassis clean and dry.

• Avoid hot‑swapping the module or CAN cables during operation.

• Store unused modules in anti‑static bags in a cool, dry place.

Safety Notice

• Do not exceed the 500 Vrms isolation rating or –27 VDC to +40 VDC bus voltage limits.

• Follow local regulations for disposal at end‑of‑life.