The National Instruments cDAQ-9137 is an eight slot CompactDAQ chassis with an integrated controller. It accepts C Series modules and provides USB connectivity along with standalone operation capability. The chassis is used in mixed measurement and control systems, industrial monitoring, and test applications where local processing and modular I O are required.
Integrating a controller into the chassis allows the system to run applications without an external host computer. Engineers can deploy measurement and control logic locally, log data, and communicate results over a network. The eight slot format supports a mix of analog input, analog output, digital I O, counters, and specialized modules.
Eight Slot Modular Architecture
The cDAQ-9137 provides eight slots for compatible C Series modules. This slot count supports complex measurement systems that combine several signal types in one chassis. Engineers should plan slot assignment by signal type, power draw, and connector access.
Documenting the slot map keeps software channel names aligned with physical positions and simplifies maintenance.
Integrated Controller and USB Connectivity
The integrated controller runs the operating system and application software. USB connectivity supports connection to a host computer for programming and data transfer, while the controller can also operate the application locally. Engineers should verify the supported USB devices and network configuration.
Local processing reduces dependence on an external computer and supports deterministic control of installed modules.
Timing and Synchronization
The chassis includes integrated timing and synchronization features for CompactDAQ modules. Engineers can use hardware timing, triggers, and shared clocks to align measurements across multiple modules and channels.
Timing configuration depends on module types and application requirements. Some measurements require simultaneous sampling, while others can use multiplexed scanning.
Software and Application Development
The chassis is designed to work with NI data acquisition software and standard programming environments. Engineers can configure channels, set sample rates, create triggers, log data, and build user interfaces. Applications can run on the integrated controller or on a connected host.
Applications
The cDAQ-9137 is suitable for mixed signal testing, sensor monitoring, industrial automation, and laboratory automation. It supports standalone operation where local processing and modular I O are important.
Installation and Maintenance
Installation requires mounting the chassis, connecting power and USB, and inserting modules. The chassis should be placed where airflow is not blocked and ambient conditions are within the operating range.
Maintenance includes checking module seating, inspecting connectors, verifying network communication, and reviewing software configuration.
Summary
The National Instruments cDAQ-9137 CompactDAQ Chassis provides eight C Series slots and an integrated controller with USB connectivity. It supports local processing, mixed signal acquisition, and modular expansion. The cDAQ-9137 is a practical chassis for standalone and distributed measurement applications.
