NI-9401

Starting at $612.00

Part number(s):

782401-01

779351-01

5 V/TTL, 8 Bidirectional Channels, 100 ns C Series Digital Module

Overview

The NI-9401 is a configurable digital I/O interface for input or output in 4-bit increments. Therefore, the NI-9401 can create three configurations: 8 digital inputs, 8 digital outputs, or four digital inputs and four digital outputs. With reconfigurable I/O (RIO) technology (CompactRIO only), you can use the LabVIEW FPGA Module to program the NI-9401 for implementing custom, high-speed counter/timers; digital communication protocols; pulse generation; and more. Each channel features transient isolation between the I/O channels and the backplane.

Included Items

Module
Safety, Environmental, & Regulatory documentation

Part Numbers (2) Price	782401-01	779351-01


NI Lead Time	8-9 weeks	8-9 weeks
Supported Hardware Platform	C Series	C Series
Number of Bidirectional Digital Channels	8	8
Conformal Coated	Yes	No
Current Flow Direction	Sinking Input#Sourcing Output	Sinking Input#Sourcing Output
Enclosed	Yes	Yes
Digital I/O Logic Levels	5 V TTL	5 V TTL

NI-9401 Accessories and Software

Model (Part Number)
Description
Image
Compatible Part Numbers
SH25F-25M (192568-01)
SH25F-25M-1 25-Pin Female to Male Shielded I/O Cable, 1 m
782401-01, 779351-01
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Model (Part Number)
Description
Image
Compatible Part Numbers
NI-9924 (781922-01)
NI 9924 Front-mount terminal block for 25-pin D-Sub Modules
782401-01, 779351-01
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Software (3)

Product (Part Number) Description	Recommended use cases
FlexLogger Professional (785748-3501) FlexLogger Professional, Subscription License, Download	Recommended for automated, extensible data logging with NI data acquisition (DAQ) hardware. Automate tests using alarms, triggers, and events, and expand capabilities with plug-ins. Key Features Multichassis synchronization—Synchronize multiple NI chassis for accurate, time-aligned measurements across high channel counts. Logging triggers—Start, stop, or segment data recording automatically based on sensor thresholds or other conditions to capture only what matters. Events—Respond to specific occurrences during a test, such as activating equipment when a condition is met (for example, start cooling fans when temperature exceeds a limit). Automation APIs—Control and monitor FlexLogger from external applications (Python, NI LabVIEW, or NI TestStand), enabling integration into larger automated test systems. Calculation channels—Perform real-time math on acquired data (averages, RMS, custom formulas) to track derived measurements as the test runs. Plug-ins—Extend FlexLogger with custom LabVIEW or Python plug-ins to integrate third-party hardware, perform custom analysis, or connect to lab systems. CAN/LIN logging—Acquire and log automotive network data alongside sensor measurements for complete vehicle or subsystem testing.	View Product Details
LabVIEW+ Suite (788509-35) NI LabVIEW+ Suite, Subscription License, Download	Recommended for engineers building full test and validation systems where modular code development and higher-level frameworks are needed to accelerate development for shorter time to market. The LabVIEW+ Suite includes the following products: NI LabVIEW—Provides a graphical programming environment for test system development, enabling connectivity to any instrument and fully integrated user interfaces. NI TestStand—Eliminates the need for time-intensive in-house sequencer development and maintenance by providing an off-the-shelf test management software for validation and production test. NI DIAdem—Saves engineers hundreds of hours of manual data analysis and report creation with automation. NI FlexLogger™ software—Simplifies data acquisition and data logging with interactive measurement setup for NI DAQ hardware. NI InstrumentStudio™ software—Provides a central location for configuration, measurement, and automation.	View Product Details
FlexLogger Lite (790818-35) FlexLogger Lite, Subscription License, Download Free	Recommended for quick, interactive data logging with NI DAQ hardware. Quickly configure, view, and record sensor data—ideal for simple tests, no coding required. Key Workflows Configure measurements—Quickly set up channels from NI DAQ hardware, apply scaling, and label signals so you can start collecting meaningful data right away. Create dashboards—Build drag-and-drop dashboards with graphs, numeric indicators, and other visual elements to monitor live signals during a test. Store results—Save logged data in standard TDMS or CSV formats for easy review, sharing, and analysis in tools like Excel, NI DIAdem, or the TDMS Viewer included with FlexLogger.	Free Download View Product Details