NI cDAQ-9181 Ethernet Enclosure

Description

NI cDAQ-9181 Ethernet Enclosure

The NI cDAQ-9181 is a 1-Slot Ethernet CompactDAQ Chassis. It serves as the foundation for small, distributed sensor measurement systems.

Key Details

• Model Name: cDAQ-9181

• Type: CompactDAQ Ethernet Chassis

• Slot Count: 1-slot

• Connectivity: Ethernet (RJ-45 connector)

• Function: Controls the timing, synchronization, and data transfer between a single C Series I/O module and an external host computer.

Specifications (Key Parameters)

✨ Product Advantages (Key Benefits)

1. Flexibility and Versatility

• Modular I/O: The single slot can accept any of the hundreds of NI C Series I/O modules, allowing you to mix and match measurement types (e.g., analog input, digital I/O, temperature, strain, voltage) in a single compact system.

• Scalability: While it’s a 1-slot system, you can easily synchronize multiple cDAQ-9181 chassis over the Ethernet network for distributed, high-channel-count applications.

2. Distributed and Remote Measurement

• Ethernet Connectivity: Allows for remote data acquisition, placing the measurement system close to the sensors and far from the host PC. This minimizes the length of analog cables, improving signal fidelity and reducing noise.

3. Compact and Rugged Design

• Small Footprint: Its compact size makes it ideal for portable or space-constrained applications.

• Industrial-Ready: The chassis is designed for demanding environments with a wide operating temperature range and high shock/vibration ratings.

4. Integrated Counter/Timers

• The inclusion of four 32-bit counter/timers allows for applications involving quadrature encoders, PWM generation, event counting, and frequency measurement without needing a dedicated counter module.

⚠️ Important Considerations (Precautions)

• Single Module Limitation: As a 1-slot chassis, it is best suited for small, dedicated, or distributed applications. If you need a dense, multi-channel solution in one location, a chassis with more slots (like the cDAQ-9185 or cDAQ-9189) would be more appropriate.

• Software Dependency: Requires the NI-DAQmx driver software to interface with the host PC and program the measurement tasks, typically through NI LabVIEW, C/C++, or Python.

• Network Reliability: Since it uses Ethernet, reliable network connectivity is essential for continuous data logging and monitoring.

🌐 Product Applications

The cDAQ-9181 is used across various industries where a small, rugged, and network-enabled measurement system is required.

• Remote Monitoring: Placing the unit at a critical point (e.g., on a machine, near a pipeline) to remotely log sensor data over a network.

• Portable Data Logging: Creating a compact, field-deployable system for capturing data during short tests or field trials.

• Small Embedded Test Cells: Used in R&D or factory floor environments for focused, high-speed measurements on a single device or small sub-system (e.g., measuring temperature and vibration simultaneously).

• Machine Condition Monitoring (MCM): Monitoring a single axis or critical component of a machine for predictive maintenance.

• Educational Labs: Providing students with a simple, yet powerful, platform for learning data acquisition principles.

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