NI CompactDAQ chassis have four-slot option
A
National Instruments product story
Edited by the Engineeringtalk editorial team
Oct 12, 2009
National Instruments has announced the cDAQ-9174 four-slot and cDAQ-9178 eight-slot CompactDAQ chassis.
The chassis build on NI's original chassis with a four-slot option, the ability to take mixed-sensor measurements at different rates, two built-in external BNC triggers and four advanced counters.
These, along with NI-DAQmx driver and measurement services software for the NI Labview graphical programming and development environment, make the NI CompactDAQ system easier to program and more suitable for mixed-signal data acquisition systems, according to the company.
NI offers more than 50 C Series modules to use interchangeably in NI CompactDAQ systems for measurements such as temperature, strain, voltage, current, sound and vibration.
The smaller footprint of the cDAQ-9174 saves space and can measure up to 128 channels in a 16 x 9 x 9cm system.
With the cDAQ-9174 and cDAQ-9178 chassis, engineers can sample from NI C Series analogue input modules at different rates instead of implementing single-rate sampling in the cDAQ-9172 chassis.
This feature makes programming easier because low-speed measurements can be separated from high-speed measurements, eliminating the need to oversample or decimate unwanted data.
Multiple timing engines are optimised for multicore processing and each driver call to a timing engine can be processed in a separate loop to maximise processing core use and process data more quickly.
The cDAQ-9178 eight-slot chassis features external BNC triggers.
With these external triggers, engineers can synchronise an NI CompactDAQ system with an external device or another system without installing and wiring a digital module.
The NI CompactDAQ chassis contain four advanced counters, twice the counters available in the cDAQ-9172 chassis.
The chassis operate in a temperature range of -20 to 55C and can withstand up to 30g shock and 3g vibration.
NI CompactDAQ achieves high-speed USB throughput with NI signal streaming technology so that the chassis can simultaneously perform multiple, high-speed operations such as waveform measurements, generation, digital I/O and counter operations.
Every NI CompactDAQ chassis is shipped with NI Labview SignalExpress LE data-logging software.
With USB plug-and-play data acquisition and Labview SignalExpress, engineers can connect NI CompactDAQ to a PC, laptop or netbook.
NI CompactDAQ also includes NI-DAQmx driver and measurement services software for Labview, NI LabWindows/CVI, C/C++ and Microsoft Visual Studio.
Designed for more advanced data-logging features such as alarming, timed logs, analysis and reporting, Labview SignalExpress works with all devices that run NI-DAQmx, including CompactDAQ.
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