NI_94780 pages

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NATIONAL

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^INSTRUMENTS

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NI 9478 Measurement System

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16 Ch, 50 V Sinking Digital Output - USB, Ethernet, or Wi-Fi

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Bundle includes measurement module and 1 -slot NI CompactDAQ chassis

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USB, Ethernet, and 802.11 Wi-Fi connectivity

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16 ch, 7 us digital output module

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Programmable current limits for customizable system protection

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Up to 1.2 A per channel (all 16 channels) or 5 A for a single channel

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Onboard system diagnostics and solenoid health monitoring

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Overview

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The NI 9478 Measurement System includes 16 sinking digital output channels capable of communicating with a host PC over USB,

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Ethernet or 802.11 Wi-Fi.

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Measurement Bundle Overview

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The hardware for an NI CompactDAQ single measurement bundle consists of a USB, Ethernet, or 802.11 W-Fi chassis and one of

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the over 50 NI C Series measurement-specific modules. These small rugged bundles are ideal for portable or distributed

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measurements.

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Chassis

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The chassis controls the timing for the module and handles communication with the PC over the USB, Ethernet, or 802.11 W-Fi bus.

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Additionally, all NI CompactDAQ chassis include four counter/timers that you can access through a digital I/O module like the NI 9401.

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Module

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The NI 9478 is a 16-channel, 7 us sinking digital output C Series module with programmable current limits, which provide

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customizable system protection that is ideal for solenoid and valve control applications. Each channel is compatible with 5 to 50 V

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signals and features 1,000 Vrms withstand isolation from channel to earth ground. The NI 9478 can sink up to 16 A of current per

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module, depending on channel configuration. It uses an industry-standard 37-pin D-SUB connector for low-cost cabling to a wide

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variety of 37-pin accessories from NI or other vendors. The module also works with industrial logic levels and signals for direct

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connection to a wide array of industrial relays, solenoids, and motors.

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The NI 9478 requires a 37-pin D-SUB connector or cable such as the NI 9933 accessory kit for direct connectivity. The NI 9933

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includes a screw terminal connector with strain relief as well as a D-SUB solder cup backshell for creating custom cable assemblies.

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Specifications

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Specifications Documents

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• Specifications (3)

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