Synchronized and Distributed Ethernet Data Acquisition Selection GuideSynchronized and Distributed Ethernet Data Acquisition Selection GuideView our line of distributed and synchronized data acquisition products in one glance using our Selection Guide. Easily compare features between all our distributed and synchronized data acquisition systems and find the products that are right for your application.
Data acquisition systems are typically synchronized or distributed, but not both. Now, a new class of high-speed data acquisition hardware from DATAQ Instruments gives you the best of both worlds. With it you can acquire data across a dispersed network of data acquisition systems, with complete synchronization.
DATAQ Instruments' Ethernet interface communication option connects DI-720/-730/-785/-788 Series products to any PC or local area network (LAN). The option uses CAT-5 cable to yield continuous data acquisition rates up to 150,000 samples per second throughput for a single device. Multiple devices connected to the same network can achieve a total throughput rate as high as 2,500,000 samples per second or more. Adding more flexibility, multiple DI-720/-730 products, each equipped with an Ethernet interface, may be simply daisy-chained together with CAT-5 cable to form an ad-hoc extended network of separated, yet fully synchronous data acquisition stations. Each station can sample at the same or different rate as other stations and still maintain full synchronization. The maximum distance between stations can exceed 100 meters, and using multiple stations a distributed data acquisition network of virtually any length may be deployed.
Using these products, synchronous measurements can be achieved in data acquisition situations that are inherently dispersed. Typical applications include, but are not limited to:
The Ethernet interface of DI-720, DI-730, and DI-785 products actually contains an embedded Ethernet switch. This approach eliminates the need to provide switches or hubs externally. It also simplifies multi-unit interconnection by allowing a daisy-chain approach. Other firmware on the Ethernet interface ensures multi-unit synchronization.
Download the DI-720/730 Data sheet for a block diagram
Each application for Ethernet-based DI-720, DI-730, and DI-785 assumes its own unique character, but here are some deployment possibilities beyond a "single-unit-to-PC" configuration you may want to consider:
Local, Synchronous Expansion
Connect and stack multiple Ethernet versions of DI-720 Series instruments (DI-720 or DI-722) or the DI-730 together in any combination. Synchronization between units is guaranteed, and the PC may be local to beyond 100 meters distant from the data acquisition hardware.
Download the DI-720/730 Data sheet for image
Add Isolated Amplifier Backpacks
Add expansion backpacks like the DI-75B and DI-78B to the mix. Doing so preserves synchronization, increases channel count, and brings the full spectrum of 5B and 8B isolation amplifiers to bear on your measurement tasks.
Download the DI-720/730 Data sheet for image
Distributed, Synchronous Expansion
Create multiple measurement stations of any combination of DI-720, -722, or -730 instruments, with or without amplifier backpacks. Individual stations may be separated from adjacent stations by over 100 meters to yield virtually unlimited overall lengths, with synchronization guaranteed across the entire span.
Download the DI-720/730 Data sheet for image
WinDaq software supplied with Ethernet interface versions of the DI-720 and DI-730 provides a complete environment for managing multiple networks, and ensuring synchronous data acquisition, real time display, stream-to-disk, playback, export, and analysis.
Download the DI-720/730 Data sheet for image
The DI-730 Series is a Heavy Industrial Ethernet Data Acquisition System providing ±1000V channel-to-channel and input-to-output isolation — Perfect for troubleshooting AC or DC motor drive systems. Measure field voltages and currents, control signals, RPM, and more. Also for Electric Motor/Generator Maintenance and Troubleshooting in Mills and Locomotion.
The DI-720 Series provide general purpose data acquisition solutions for use in situations where pre-amplified signals are acquired. Examples include process monitoring and a variety of medical research applications.
DI-722 products feature an extended measurement range (±2.5 to ±20 volts full scale), input protection (up to 120V RMS normal and common mode voltages), and full differential measurement capability. These enhancements allow the DI-722 Series to make otherwise difficult measurements such as in-vehicle testing or any other measurement application where a 10 volt full scale range is inadequate.
DI-785 products feature 32 channels designed specifically for DI-5B signal conditioning modules. These modules provide a direct interface to thermocouples, RTDs, strain gages, voltage, and process current signals.
DI-788 products feature 32 channels designed specifically for DI-8B signal conditioning modules. These modules provide a direct interface to thermocouples, RTDs, strain gages, voltage, and process current signals.
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