cDAQ_TSN

NI integrates TSN into CompactDAQ

May 24, 2017

Austin, TX. NI today at NIWeek announced the integration of Time Sensitive Networking (TSN) into CompactDAQ with the introduction of the new cDAQ-9185 and cDAQ-9189 multislot Ethernet chassis. The integration builds on NI’s announcement at last year’s NIWeek to add TSN capability to CompactRIO.

In an embargoed press conference Monday, Shelley Gretlein, vice president of corporate marketing, noted that work on defining TSN began in 2012 with the creation of a task force. The opening this year of NI’s Industrial Internet of Things Lab promises to further facilitate work on TSN. NI, she said, has been named by IoT ONE as one of the top 30 of 1,600 IIoT companies.

On the keynote stage this morning, Ryan Welker, business development manager at Integrated Test + Measurement, outlined the need for TSN in data-acquisition applications. His company, established in 2001, specializes in large, rugged DAQ applications requiring the time synchronization capabilities that TSN can provide.

NI says the nature of physical systems test is changing as measurement systems migrate from the control room to closer to the device under test. While this shortens installation time, reduces the cost of sensor wiring, and improves measurement accuracy, it creates challenges with synchronization and systems management, especially using today’s industrial networking technologies.

Ni says it is actively working to help define TSN, the next evolution of the IEEE 802.1 Ethernet standard, to deliver distributed time synchronization, low latency, and convergence of time-critical and general networking traffic. The cDAQ-9185 and cDAQ-9189 provide tight time synchronization with TSN to simplify and improve scalability of synchronized, distributed systems.

The TSN-enabled cDAQ chassis provide these features:

  • precise synchronized timing over the network, which eliminates the need for lengthy, physical timing cables and ensures tightly synchronized measurements for accurate analysis;
  • simple daisy chaining through an integrated network switch for quick setup and expansion in distributed applications;
  • reliable operation in harsh environments with -40° to 70°C operating temperature range, shock resistance up to 50 g, and vibration resistance up to 5 g; and
  • software abstraction through the NI-DAQmx driver that automatically synchronizes multiple chassis for simple programming.

“These new chassis automatically synchronize measurement data using network-based time. This allows accurate synchronization over long distances, which greatly simplifies customer setup and systems management of high-channel-count and distributed systems,” said Todd Walter, chief marketing manager of the DAQ and embedded lead-user team at NI, in a press release. “This new, innovative method of synchronization combined with the signal processing libraries in LabVIEW system design software helps engineers quickly collect and analyze results, which drives faster test completion and higher efficiency.”

To learn more visit www.ni.com/compactdaq/whatsnew/.

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