NI-9478

The NI-9478 is a 16-channel C Series sinking digital output module. Programmable current limits support industrial load control and customizable protection.

ManufacturerNational Instruments

ModelNI-9478

Part Number779940-01 · 779940-02

Product TypeSinking digital output module

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Digital outputs16 sinking channels

PlatformsCompactDAQ and CompactRIO

ConnectionD-Sub

ProtectionProgrammable current limits

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Overview

Product overview

Key product information and technical features.

The NI-9478 interfaces with industrial relays, solenoids, and motors. Its sinking outputs and programmable current limits make it relevant to solenoid and valve control.

NI lists standard and conformal-coated part-number variants. Confirm the physical module's label before selecting variant-specific specifications.

16 dedicated digital output channels with sinking current flow.
Programmable current limits for customizable protection.
Channel-to-earth ground isolation.

Verified specifications

Technical data

Verified product specifications.

Digital output channels	16 channels
Output type	Sinking
External supply voltage range	0 to 50 VDC
Continuous current per channel	1.2 maximum with all channels on; 2.5 maximum with four channels on; 5 maximum with one channel on A
Current limit range	0 to 5.1 A
Continuous channel-to-earth isolation	60; Measurement Category I VDC
Channel-to-channel isolation	None
Operating temperature	-40 to 70 °C