The National Instruments PXI-6224 Multifunction I/O Module, designated with part number 779114-01, is a key component of the M Series product line. This module integrates advanced features, including the DAQ-STC2 and DAQ-6202 architectures, providing robust functionality for a range of industrial applications. It operates with a PXI interface and includes a phase-locked loop (PLL) for precise clock synchronization, offering static digital input/output signals and true 5 V high-current drive digital outputs. The PXI-6224 supports digital waveform acquisition and generation, multiple triggering modes, and flexible timing for analog input (AI) and output (AO) sampling and conversion.

The module features 16 differential or 32 single-ended analog input channels, two general-purpose counters/timers, and one frequency generator channel, with a resolution of 16 bits and a maximum sampling rate of 250 kS/s. Its performance is enhanced by sophisticated front-end signal conditioning, utilizing a shielded SCC carrier that can accommodate up to 20 single- or dual-channel SCC modules—allowing individual selection of measurement technology for each channel, capable of achieving sampling rates up to 1.25 MHz.

Precision and stability are paramount; thus, the PXI-6224 incorporates calibration circuitry designed to correct gain and offset errors and ensure accurate measurements even with fluctuations in time and temperature. Operating with the NI-DAQmx driver software, the module is fully compatible with application development environments such as LabVIEW and LabWindows/CVI. The unit is compact, weighing 5.9 oz, and has a recommended warm-up time of 15 minutes, with annual external recalibration suggested for optimal performance. It is designed to operate within a temperature range of 0 ºC to 55 ºC and can be stored between -20 ºC and 70 ºC. The PXI-6224 is currently in mature status but remains available for purchase and repairs through Apex Waves. A user manual and maintenance documentation are readily accessible for download. For pricing information, please contact a sales representative.