The National Instruments PXI-7314 is a high-performance stepper motor controller designed for PXI bus systems, providing advanced programmable motion control capabilities. This versatile motion controller is equipped to handle a variety of applications, including velocity control and positioning tasks, with support for event-based motion profiling, velocity profiling, and point-to-point positioning. It accommodates different stepping modes, including micro-stepping, full, and half-step operations, ensuring flexibility for various motor control needs. The PXI-7314 features a 68-pin high-density female VHDCI connector, facilitating easy access to motion I/O signals as well as a 24-bit digital I/O port for additional functionality, such as interfacing with home and limit switches.

The controller is capable of executing trapezoidal motion profiles and can operate in velocity control mode, allowing it to maintain a predefined speed until an interrupt is received from a home or limit switch or until a stop command is initiated. With its advanced event-based motion profiling, users can preload motion control functions into integrated memory trigger buffers, enabling precise coordination and semi-autonomous operations in response to external events. Although the PXI-7314 has been designated obsolete by National Instruments, it remains available for purchase and repair through Apex Waves.

The technical specifications of the PXI-7314 include a maximum step frequency of 750,000 steps per second, an input voltage range of 0 to 12 V, and an output voltage range of 0 to 5 V, with an 8-bit analog input resolution. The physical dimensions are 6.3 x 3.9 inches (excluding connectors). For comprehensive operational guidance, a user manual and maintenance manual are available for download. For pricing information, please contact a sales representative.