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National Instruments cDAQ-9191 Single-slot Wi-Fi and Ethernet data acquisition chassis
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National Instruments · CompactDAQ

cDAQ-9191

The NI cDAQ-9191 is a single-slot CompactDAQ chassis that connects a supported C Series I/O module to an external host through Wi-Fi or Ethernet. It is designed for small, remote, or distributed sensor measurement systems.

ManufacturerNational Instruments
ModelcDAQ-9191
Part Number781497-01
Product TypeSingle-slot Wi-Fi and Ethernet data acquisition chassis
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Module capacity1 C Series I/O module
Wireless interfaceIEEE 802.11b/g
Wired interface10/100 Mbps Ethernet
Power input9–30 VDC
Counters/timers4 onboard, 32-bit
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Overview

Product overview

Key product information and technical features.

The cDAQ-9191 provides chassis timing, synchronization, and data transfer between an installed C Series module and a host computer. Its single-slot design suits measurement points that do not require a multi-slot chassis.

Measurement types, channel counts, and signal capabilities depend on the selected C Series module. The chassis itself is not a fixed-channel analog or digital I/O module; NI-DAQmx provides the software interface for measurement applications.

  • Single C Series module slot for a compact measurement configuration.
  • Wireless or wired communication with an external host computer.
  • Four general-purpose counters/timers, accessed through an installed hardware-timed digital C Series module.
  • Wireless signal-strength LEDs assist with connection assessment.
Verified specifications

Technical data

Verified product specifications.

Module slots1 slot
Ethernet communication rate10/100, auto-negotiated Mbps
Wireless radio modesIEEE 802.11b and 802.11g
DC input voltage9–30 VDC
Maximum power consumption6; includes maximum 1 W module load under the manufacturer's stated conditions W
Operating temperature0–55; horizontal mounting to a metal panel or surface required at 45–55 °C °C
Dimensions, unloaded without antenna202.7 × 88.7 × 33.6 mm
Weight, unloaded without antenna481 g
Ingress protectionIP30; indoor use only
General-purpose counters/timers4
Counter/timer resolution32 bits
Condition & included items

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Condition

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Compatibility

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National Instruments

Manufacturer

CompactDAQ

Modular data acquisition platform

cDAQ-9191

Single-slot network chassis

Software

NI-DAQmx supports measurement application development; verify the selected driver, firmware, and operating-system combination.

Confirm module and software support before integration. Wireless throughput depends on the module, acquisition configuration, and RF environment.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI cDAQ-9191 Product and Support PageProduct Support Page · ni.com
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NI cDAQ-9191 SpecificationsSpecifications PDF · download.ni.com
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Archived: NI Wi-Fi DAQ Frequently Asked QuestionsTechnical FAQ · ni.com
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cDAQ-9191 Firmware and Additional DriversTechnical resource
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Firmware Information for NI CompactDAQ Network ChassisTechnical resource
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Shipping, warranty & returns

Commercial terms

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Is the cDAQ-9191 an eight-slot I/O module?

No. It is a single-slot CompactDAQ chassis that holds one supported C Series I/O module.

Does the cDAQ-9191 have a fixed channel count or analog resolution?

No. These measurement characteristics depend on the installed C Series module rather than a fixed chassis-wide channel count or converter resolution.

Can it communicate over Ethernet instead of Wi-Fi?

Yes. The cDAQ-9191 supports 10/100 Mbps Ethernet as well as IEEE 802.11b/g wireless communication.

How are the onboard counters accessed?

The four 32-bit counters/timers are accessed through an installed hardware-timed digital C Series module.

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