NI_94780 pages
NATIONAL
nnnn^INSTRUMENTS
nnnnNI 9478 Measurement System
nnnn16 Ch, 50 V Sinking Digital Output - USB, Ethernet, or Wi-Fi
nnnnBundle includes measurement module and 1 -slot NI CompactDAQ chassis
nnnnUSB, Ethernet, and 802.11 Wi-Fi connectivity
nnnn16 ch, 7 us digital output module
nnnnProgrammable current limits for customizable system protection
nnnnUp to 1.2 A per channel (all 16 channels) or 5 A for a single channel
nnnnOnboard system diagnostics and solenoid health monitoring
nnnnOverview
nnnnThe NI 9478 Measurement System includes 16 sinking digital output channels capable of communicating with a host PC over USB,
nnnnEthernet or 802.11 Wi-Fi.
nnnnMeasurement Bundle Overview
nnnnThe hardware for an NI CompactDAQ single measurement bundle consists of a USB, Ethernet, or 802.11 W-Fi chassis and one of
nnnnthe over 50 NI C Series measurement-specific modules. These small rugged bundles are ideal for portable or distributed
nnnnmeasurements.
nnnnChassis
nnnnThe chassis controls the timing for the module and handles communication with the PC over the USB, Ethernet, or 802.11 W-Fi bus.
nnnnAdditionally, all NI CompactDAQ chassis include four counter/timers that you can access through a digital I/O module like the NI 9401.
nnnnModule
nnnnThe NI 9478 is a 16-channel, 7 us sinking digital output C Series module with programmable current limits, which provide
nnnncustomizable system protection that is ideal for solenoid and valve control applications. Each channel is compatible with 5 to 50 V
nnnnsignals and features 1,000 Vrms withstand isolation from channel to earth ground. The NI 9478 can sink up to 16 A of current per
nnnnmodule, depending on channel configuration. It uses an industry-standard 37-pin D-SUB connector for low-cost cabling to a wide
nnnnvariety of 37-pin accessories from NI or other vendors. The module also works with industrial logic levels and signals for direct
nnnnconnection to a wide array of industrial relays, solenoids, and motors.
nnnnThe NI 9478 requires a 37-pin D-SUB connector or cable such as the NI 9933 accessory kit for direct connectivity. The NI 9933
nnnnincludes a screw terminal connector with strain relief as well as a D-SUB solder cup backshell for creating custom cable assemblies.
nnnnSpecifications
nnnnSpecifications Documents
nnnn• Specifications (3)
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