The National Instruments PXIe-8510 is a vehicle multiprotocol interface module for PXI Express systems. It provides six communication ports that support CAN, LIN, and FlexRay protocols. The module is used in automotive network test, electronic control unit validation, vehicle bus monitoring, and production test where multiple in vehicle networks must be accessed from a single PXI Express system.
Modern vehicles use several communication protocols for different functions. CAN handles high speed control networks, LIN supports lower cost body and actuator networks, and FlexRay provides deterministic high bandwidth communication for safety related systems. The PXIe-8510 allows engineers to access these networks together, which simplifies correlation of messages with physical measurements acquired in the same chassis.
Six Port Multiprotocol Architecture
The module provides six communication ports. Ports can be configured for the protocol required by the network under test. Engineers should verify port assignment, protocol selection, and termination for each network before connecting.
Ports should be labeled by network and function. Documentation of which electronic control unit or bus connects to which port supports repeatable test configuration and maintenance.
Protocol Support and Configuration
CAN support covers classic CAN and compatible high speed networks. LIN support covers body and actuator networks with the appropriate scheduling. FlexRay support covers deterministic communication with cycle based scheduling. Engineers should configure bit rates, timing parameters, and frame handling according to each network specification.
Termination and cabling differ between protocols. CAN and FlexRay require proper termination at the bus ends, while LIN requires attention to master and slave configuration. Incorrect termination is a common cause of communication errors.
PXI Express Integration
The module installs in a compatible PXI Express slot and communicates through the backplane. It can be combined with controllers, digitizers, and DAQ modules. This integration supports test systems that correlate vehicle bus messages with analog and digital measurements.
The PXI Express backplane supports high throughput and timing resources that help coordinate network traffic with other instruments.
Software and Frame Handling
The module is configured through NI software and compatible programming environments. Engineers can define network channels, set frame identifiers, and read or write data. Software can apply scaling, filtering, and logging.
Software should include error handling, timeout detection, and safe state behavior. Documentation of message identifiers and scaling helps repeatability across test campaigns.
Applications
The PXIe-8510 is suited to automotive component test, vehicle network monitoring, electronic control unit validation, and production test. It supports multiple vehicle protocols in one module, which reduces the number of interface cards required.
Installation and Maintenance
Installation requires a compatible PXI Express slot, driver installation, and network cabling. Termination and bit rates should be verified for each port. The chassis should provide adequate cooling.
Maintenance includes checking connectors, verifying bus termination, and reviewing software configuration. Documentation of network settings helps troubleshooting.
Summary
The National Instruments PXIe-8510 Vehicle Multiprotocol Interface Module provides six communication ports supporting CAN, LIN, and FlexRay for PXI Express systems. It supports automotive network test and validation with multiple protocols in one module. Careful configuration of ports, termination, and software makes the module a practical interface for vehicle bus testing.
