National Instruments PXI-7811R

The National Instruments PXI-7811R is a PXI Digital Reconfigurable I/O Module that boasts 160 Digital I/O channels and a Virtex-II 1M FPGA. This client-programmable FPGA enables advanced design possibilities with functionalities such as inputs, outputs, counters/timers, pulse-width modulation (PWM), encoder inputs, and specialized communication protocols. Utilizing LabVIEW FPGA software, users can implement custom decision-making algorithms that operate with hardware-timed precision and reliability. The PXI-7811R is ideal for a wide range of applications including fast waveform generation, sensor simulation, hardware-in-the-loop (HIL) testing, custom communication protocols, and error rate testing, all of which demand precise timing and control.

The module requires NI-RIO driver software version 1.3 or later and is compatible with LabVIEW and the LabVIEW FPGA Module 7.1 or later, as well as the LabVIEW Real-Time Module. For optimal integration, it necessitates one connector block and shielded cable, with the recommended components being the SCB-68A Spring-Screw Terminals Connector Block and a 1-meter SHC68-68-RDIO cable. Additionally, the PXI-7811R includes an instrumentation amplifier that enhances common-mode voltage rejection and provides high input impedance to the AI signals. The device is equipped with internal multiplexers that channel signals through the instrumentation amplifier, enabling accurate differential measurements.

Operating as both floating and ground-referenced signal sources, the PXI-7811R accommodates a variety of applications such as transformer outputs, thermocouples, and battery-operated devices. With dimensions of 6.3 x 3.9 inches and a weight of 152 grams, the PXI-7811R conforms to compact design standards for integration into existing systems. Although declared obsolete, this module remains available for purchase and repair through Apex Waves and includes a three-year warranty, with user and maintenance manuals accessible for download. For pricing information, please contact a sales representative.