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cDAQ-9187, 8 Slots, 16 W, Ethernet , CompactDAQ Ethernet Chassis
National Instruments cDAQ-9187 CompactDAQ Ethernet Chassis
The cDAQ-9187 is an eight-slot CompactDAQ Ethernet chassis designed for distributed sensor measurement systems. For data collection applications, it offers smooth interaction with C Series I/O modules, making it possible to acquire a variety of analog and digital I/O signals. For industrial monitoring and automation applications, the cDAQ-9187 is a great option because of its Time-Sensitive Networking (TSN) features, which enable highly synchronized measurements across extended distances.
With its single internal network port, this Ethernet-based chassis makes it simple to connect to current LAN infrastructures. A hardware-timed digital C Series module provides access to four 32-bit general-purpose counters/timers, which can be used for pulse train creation, PWM, and quadrature encoders. Potential hardware or network problems can be identified and addressed with the aid of the user-programmable watchdog timer and integrated system health monitoring.
By supporting IEEE 802.1AS synchronization, the cDAQ-9187 guarantees accurate network-based timing for several devices. Because it supports multi-chassis jobs, time-based triggers, and timestamping, it is perfect for synchronized measurements across numerous networked devices.
The cDAQ-9187's physical dimensions are roughly 25.9 cm by 8.9 cm by 8.2 cm, and in conventional configurations, it can operate at temperatures ranging from 0°C to 50°C; the maximum temperature is affected by extra mounting configurations. It has a power connector, an Ethernet port, a reset button, and many LED indicators to track system activity and power. The chassis uses a maximum of 16 W of electricity and runs between 9 V and 30 V DC.
The cDAQ-9187 is widely used in industrial automation, structural testing, and environmental monitoring applications, benefiting users who need flexible, scalable, and networked data acquisition solutions. Its ability to work with a wide variety of C Series modules makes it a reliable choice for engineers and researchers looking for highly synchronized and distributed measurement solutions.
| Model Name | cDAQ-9187 |
|---|---|
| Manufacturer | National Instruments |
| Part Type | CompactDAQ Ethernet Chassis |
| Number of Slots | 8 (Supports up to 8 C Series I/O Modules) |
| Communication Interface | Ethernet (10/100/1000 Mbps) |
| Synchronization | IEEE 802.1AS (TSN) for Network-Based Synchronization |
| Counters/Timers | 4 x 32-bit General-Purpose Counters/Timers |
| Input Power Range | 9 V to 30 V DC |
| Maximum Power Consumption | 16 W |
| Networking Features | Supports Time-Based Triggers, Timestamps, Multi-Chassis Tasks |
| Operating Temperature | 0°C to 50°C (Standard Configuration) |
| Dimensions | 25.9 cm × 8.9 cm × 8.2 cm |
| Weight | 1.54 kg (3.4 lbs) |
| Chassis Grounding | Chassis Grounding Screw for EMC Performance |
| LED Indicators | Power, Status, Active, Ethernet Link/Activity |
| Mounting Options | Panel Mount, DIN Rail, Rack Mount, Desktop |
| Software Compatibility | NI-DAQmx (2024 Q4 or later), LabVIEW, LabWindows/CVI, C/C++, .NET, Python |
Associated part numbers for cDAQ-9187:
National Instruments cDAQ-9187 Frequently Asked Questions
Question: What is NI cDAQ?
Answer: NI cDAQ (CompactDAQ) is a modular data acquisition platform that integrates C Series I/O modules with USB, Ethernet, or Wi-Fi chassis for flexible and scalable signal measurement. It supports hardware-timed synchronization for accurate data gathering and allows users to obtain analog, digital, and counter/timer signals from a range of sensors. cDAQ systems with NI-DAQmx driver support are frequently employed in distributed monitoring, industrial automation, and structural testing applications.
Question: What are the maximum data throughput capabilities of the cDAQ-9187 over Ethernet?
Answer: The cDAQ-9187 supports 10/100/1000 Mbps Ethernet connectivity with optimized TCP/IP-based data streaming. The chassis can handle multiple simultaneous hardware-timed tasks, supporting up to seven independent high-speed data streams. Performance depends on factors such as I/O module type and resolution, sample rates per slot, network latency and switch configurations, and NI-DAQmx optimizations. For applications requiring continuous high-speed acquisition, it is recommended to use dedicated Gigabit Ethernet networks with managed switches to avoid packet loss or delays.
Question: How does the cDAQ-9187 handle real-time counter/timer operations?
Answer: The cDAQ-9187 features four 32-bit general-purpose counters/timers, which can be accessed through parallel digital I/O modules. These counters support:
-Quadrature encoder measurements for position tracking.
-Pulse-width modulation (PWM) generation with programmable duty cycles.
-Frequency and period measurements with sub-microsecond resolution.
-Pulse train generation for digital control applications.
The counters operate in hardware-timed buffered mode, allowing for high-speed event capture and low-latency control loops. When used with C Series counter/timer modules, these features make the cDAQ-9187 ideal for applications such as motor control, robotics, and real-time embedded system testing.
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