24 V, Sinking Digital Input, 8 Ch Module NI 9423

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  • 8-channel, 1 µs high-speed digital input
  • Up to 30 V, sinking digital input
  • Compatible with NI CompactDAQ counters
  • 250 Vrms, CAT II isolation
  • 10-position screw-terminal connector
  • -40 °C to 70 °C operating, 5 g vibration, 50 g shock
  • Configure Complete CompactRIO or NI CompactDAQ System
  • View Data Sheet
  • View Support Resources
The NI 9423 is an 8-channel, 1 µs high-speed sinking digital input C Series module for any NI CompactDAQ or CompactRIO chassis. Each channel can input up to 30 V discrete voltage levels, is compatible with 12 V and 24 V signals, and features transient overvoltage protection of 2,300 Vrms between the input channels and earth ground. Each channel also has an LED that indicates the state of that channel. The NI 9423 works with industrial logic levels and signals to directly connect to a wide array of industrial switches, transducers, and devices.

The NI 9423 module is a correlated digital module, so it can perform correlated operations, triggering, and synchronization when installed in an NI CompactDAQ chassis.

Recommended Accessories
-NI 9927 strain relief and operator protection

Optional Accessories
-NI 9936 extra screw-terminal block (qty 10)
-NI 9980 extra spring-terminal block (qty 10)
Note: The NI 9980 is not compatible with the NI 9927 and must be used with low- or non-hazardous voltages or installed in a properly rated enclosure.

Box Contents
1 NI 9423 C Series module
1 NI 9423 Operating Instructions and Specifications manual
1 NI 9936 10-position connector

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Specifications Documents

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Specifications Summary

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NI 9423 Packages

To use the NI 9423 , you need all items in the diagram below. Select Option 1 if you already own a C Series System, or Option 2 if you do not already own a chassis, controller, or software.

Roll over the icons below to learn why you need each item in the system

C Series System

1 Connectivity Accessories

NI 9423

Chassis

Controller

Software

NI 9423 and Accessories Only
NI 9423
Screw Terminal Connectivity - 779009-01 Qty $ 290 each
Required Accessories
Connectivity Accessories -
Qty $ 30 each
Optional Accessories
Connector Block
Qty $ 53 each
Qty $ 63 each

Package Price: $ 320

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Select a Platform and Configure a System

Create a complete system with the NI 9423 and its accessories. However, the NI 9423 is compatible with multiple C Series Platforms, NI CompactDAQ and CompactRIO. Please review the comparison information below and select a platform to begin configuring your system.

Configure System Configure System

NI CompactDAQ NI CompactRIO
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Mixed-Measurement Data Acquisition


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Time-Critical Control & Monitoring


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Features NI CompactDAQ NI CompactRIO
USB, Wi-Fi, Ethernet, Headless Operation Ethernet, Headless Operation
Up to -40 to 70 C
Up to 50 g shock and 5 grms operational vibration
Up to -40 to 70 C
Up to 50 g shock and 5 grms operational vibration
LabVIEW, LabVIEW Real-Time, C, C++, VB.NET, C#.NET LabVIEW, LabVIEW Real-Time, LabVIEW FPGA, C, C++
NI-DAQmx driver; configuration and troubleshooting tools; short time to first measurement NI-RIO driver; flexibility and customizabilty
PC-based data acquisition; embedded data-logging; portable and benchtop Single-point acquisition; closed-loop control; deterministic operation

System Assurance Programs

Reduce your setup time and total cost of ownership, and get a system you can use out of the box with National Instruments system assurance programs. System assurance programs include:

  • Installation and integration test of all individual hardware
  • Courtesy installation of system driver sets and application development environments
  • Extended warranty and calibration coverage for up to five years
  • Custom documentation plus a custom restore and startup utility

This service is only available for PXI, NI CompactRIO, and NI Compact FieldPoint systems.

Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

Repair Services

Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.

Technical Support

ni.com/support

Additional Product Information

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