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July 2025
PXI-7334 Request for Availability
PXI-7334, 4 Analog Input, 32 Bit Digital I/O, Stepper Motion Controller Module
Rated 5/5 | 11 ratings
Actual item may vary if no part number is provided on quote request.
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments PXI-7334 Stepper Motion Controller Module
The National Instruments PXI-7334 (Part Numbers: 779035-04, 778444-01) is a specialized controller tailored for precise point-to-point motion applications, particularly suited for industrial automation tasks. Equipped with advanced motion control capabilities, it facilitates seamless coordination of multiple axes for straight line vector movement, ensuring smooth motion even at high velocities.
The PXI-7334 provides fully programmable motion control for up to four independent or coordinated axes and was created specifically for stepper motor control within PCI and PXI bus systems. Accurate point-to-point and straight-line vector movements are made possible by its high-performance stepper generating capabilities, which make it perfect for a variety of automation applications.
The architecture of the controller features two processors: a customized field programmable gate array (FPGA) and an Analog Devices ADSP-2185 digital signal processor (DSP), together with a Motorola MC68331 real-time 32-bit CPU. This architecture offloads sophisticated motion operations from the host PC, improving system performance and command throughput. Dedicated motion I/O for home switch and end-of-travel limit inputs, trigger input, breakpoint output, and encoder feedback speeds of up to 20 MHz are some of the important features. Furthermore, the controller provides non-dedicated user input/output, comprising four analog inputs, joystick inputs, and 32 bits of digital I/O appropriate for ±10 V signals or analog sensor monitoring.
Utilizing quadrature encoders or analog inputs for position and velocity feedback, the PXI-7334 offers both open and closed-loop operation modes for stepper axes. Step/direction or clockwise/counter-clockwise digital outputs are available. In the event of a malfunction, the controller has shutdown inputs to turn off all axes and command outputs in addition to a watchdog timer function that resets the board to its initial state. Its strong motion I/O capabilities also include support for digital I/O ports with individual bit programmability for flexible control topologies and encoder inputs with a maximum count rate of 20 MHz.
The PXI-7334 is no longer available from the manufacturer National Instruments (NI), but the Motion Controller Module with remain available in perpetuity with Apex Waves for both purchase and repairs!
| Model | PXI-7334 |
|---|---|
| Part Numbers | 779035-04, 778444-01 |
| Manufacturer | National Instruments |
| Series | NI-73xx Series |
| Type | Stepper Motion Controller Module |
| Digital I/O Channels | 32 |
| Input Resolution | 12 Bits |
| Axis Type | Stepper |
| Digital I/O Connector | 68-Pin Female VHDCI (High Density) |
| Power Consumption | 5.7 W Maximum |
| Dimensions | 6.3 x 3.9 in. (16 x 10 cm), Without Connectors |
| Weight | 6 oz. (170 g) |
| Warranty | 2-3 Year Warranty |
| PXI-7334 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PXI-7334:
National Instruments PXI-7334 Frequently Asked Questions
Question: Does the PXI-7334 integrate with data acquisition devices?
Answer: Yes, the Motion Controller Module has advanced integration abilities with data acquisition and machine vision.
Question: Does the NI PXI-7334 have an RTSI bus or a PXI trigger bus?
Answer: The module is equipped with both the RTSI bus and a PXI trigger bus to communicate to other devices with no additional wiring needed.
Question: How many axes does the PXI-7334 have?
Answer: The motion controller features 4 axes.
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