National Instruments PCI-7344

The National Instruments PCI-7344 Motion Controller (Part Number: 778916-04) is designed for advanced stepper and servo control applications, featuring capabilities such as 3D contouring and 3D linear and circular interpolation. With a PID loop update rate of up to 62 ms, this high-performance controller enables smooth and precise motion control, making it an ideal choice for machine builders and end users who seek a robust platform for rapid application development. The PCI-7344 incorporates a dual-processing architecture that optimizes closed-loop control, motion command processing, and system automation, ensuring reliable performance in demanding environments. Safety mechanisms, including a watchdog timer with a 63 ms timeout, help maintain system integrity by resetting the board to its startup state when necessary.

This motion controller supports trajectory updates ranging from 62.5 to 500 µs/sample and offers a maximum update range of 62.5 µs per axis. Users can achieve stepper outputs at a pulse rate of up to 4 MHz with a pulse width of 120 ns over a voltage range of 0 to 5 V. The PCI-7344 features four 8-bit digital I/O ports that can be individually programmed, with two 68-pin high-density VHDCI I/O connectors for motion control and digital I/O, supporting up to four axes. The motion I/O connector provides essential signals for controlling stepper and servo motion, including inhibit outputs, breakpoint outputs, and limit inputs.

For enhanced connectivity with other National Instruments devices, the PCI-7344 includes an RTSI connector. It is fully compatible with major software platforms, including LabVIEW 8.5 or later, Microsoft Visual C++, Microsoft Visual Basic, and LabWindows/CVI 8.5 or later, as well as the NI-Motion 7.6 suite. Required hardware includes a computer with a PXI/PCI slot, along with specific motor drives and cabling. Although the NI PCI-7344 is considered obsolete, Apex Waves continues to offer this motion controller for purchase and repair services.

The controller measures 6.9 by 3.9 inches and includes a three-year warranty, with user manuals available for download. For pricing information, please contact a sales representative.