12 reviews

SIRIUS® RTData Acquisition (DAQ) Systems With Real-Time EtherCAT Bus

SIRIUS® RT data acquisition systems combine high-end signal conditioning amplifiers and real-time EtherCAT data bus for low latency data output capability to 3rd party EtherCAT® real-time controllers.

The SIRIUS® RT DAQ systems can perform high-speed buffered data acquisition and feed real-time data to any 3rd-party EtherCAT® master such as Beckoff, MTS FlexTest, Syclone Clemessy, Labview, and others.

Award-winning data acquisition software is included for free with lifetime free updates.







High Voltage

High Voltage



Strain and Stress

Strain and Stress

Full Bridge

Full Bridge

Half Bridge

Half Bridge

Quarter Bridge

Quarter Bridge









Counter and Encoder

Counter and Encoder



DSI compatible

DSI compatible

TEDS compatible

TEDS compatible

CAN bus

CAN bus





Galvanic isolation ±1000 V

Galvanic isolation ±1000 V



Analog out

Analog out











USB 2.0

USB 2.0

USB 3.0

USB 3.0





-10°C to +50°C

-10°C to +50°C

SIRIUS® RT highlights

DAQ and Control

SIRIUS RT instruments are the upgrade of standard SIRIUS rack models. They offer the same amplifier technology, data logging, and data processing capabilities, but include an additional EtherCAT data bus that can send the data in real-time to any 3rd party EtherCAT master. 

Dual Mode

EtherCAT slave interface can be used to provide real-time data to a 3rd party control system while the Internal bus allows full-speed data recording to Dewesoft X software in parallel, serving both worlds of data acquisition and control which have been so far separated.

High-End Signal Conditioning

This data acquisition system is built around SIRIUS DAQ technology and features the same versatile and powerful amplifiers for world-leading signal conditioning. See the SIRIUS product page for a detailed SIRIUS DAQ technology overview.

All-In-One Instruments

SIRIUS RT systems offer standalone operation with a powerful built-in data processing CPU (SBOX computer) and highly reliable SSD data storage. 

128 Analog Inputs

Systems can be configured with up 128 high-dynamic analog input channels. Select between various signal conditioning amplifiers for voltage, current, IEPE, charge, strain, LVDT, thermocouple, RTD, and resistance signals.

Up to 64 Counter/Encoder Inputs

R8 DAQ system can be configured with up to 64 counter/encoder or 192 digital input channels, all equipped with our patented SuperCounter technology.

EtherCAT Expansion Port

DAQ system includes EtherCAT master port with built-in synchronization for easy connection and extension of any of our EtherCAT-based DAQ systems like KRYPTON, IOLITE, or SIRIUSe DAQ systems.

Connectivity Interfaces

The built-in computer includes modern connectivity interfaces such as Wireless LAN (WiFi), dual gigabit LAN, USB 3.0, GPS/GNSS, HDMI, EtherCAT and synchronization are available.

100 Hz GPS With RTK

We can integrate an optional 10Hz or 100Hz GNSS receiver directly into the DAQ system. This enables precise GPS positioning for navigational testing applications. GNSS receivers offer optional RTK support which can improve the positioning accuracy down to 1 cm.

Software included

Every Dewesoft data acquisition system is bundled with award-winning DewesoftX data acquisition software. The software is easy to use but very rich and deep in functionality. All software updates are free forever with no hidden licensing or yearly maintenance fees.

Dewesoft quality and 7-year warranty

Enjoy our industry-leading 7-year warranty. Our data acquisition systems are made in Europe, utilizing only the highest build quality standards. We offer free and customer-focused technical support. Your investment into the Dewesoft solutions is protected for years ahead.

Data Acquisition and Real-Time Control Merged in One System

SIRIUS RT systems (R2rt, R4rt, and R8rt) offer our world-class data acquisition combined with a real-time low-latency EtherCAT bus. They incorporate the same SIRIUS data acquisition technologies, high-end signal conditioning, built-in SSD data logging, and a very powerful signal processing computer.

EtherCAT slave port allows the system to be connected to any 3rd party EtherCAT master or real-time controller. This allows the system to feed the acquired data in real-time.

SIRIUS RT systems bring the worlds of data acquisition and control into a single, simple to use instrument, allowing them to perform two tasks simultaneously:

  1. Acquire, store, and process signals from virtually any sensor with high-end signal conditioning amplifiers to an internal computer with a solid-state drive.

  2. Send the acquired data in real-time through the real-time EtherCAT port to any 3rd party EtherCAT master.

Integrate Into Existing Test Bench Real-Time Controllers

Traditionally you need to purchase and configure additional control system I/O's to bring data from analog sensors and data acquisition systems to the test bench controllers. With SIRIUS RT systems this is done faster, cheaper, and also much more accurate.

SIRIUS RT system can feed the data to the test bench controller in real-time via only one cable over the EtherCAT protocol. This completely removes the need for traditional control system I/O's, clumsy analog cabling, and complex configurations.

SIRIUS RT solution is unique on the market. It brings many improvements to your test routines. Scroll down to see why this solution will save you time and money.

1. Save Money One System for Multiple Tasks

SIRIUS RT systems will save you money on several stages of your testing process. The Dewesoft DualMode functionality will allow you to use the same system for highly accurate data acquisition as well as a signal conditioning device for your real-time test bench.

Thanks to the EtherCAT real-time interface, no analog input stage is needed on a 3rd party controller. This means no additional analog I/O hardware and much much fewer cables which saves you costs.

2. Save Time Simplified Configuration

R8rt DAQ system removes the clumsy and time-consuming configuration of additional analog I/O's required by the test bench controllers. Only one ethernet cable is needed between the R8rt instrument and the real-time controller.

The included Dewesoft X data acquisition software can send the channel EtherCAT configuration to the controller with a single click. This is not just fast and easy but also greatly reduces human errors.

The image on the right shows the amount of the I/O cables removed with the R8rt solution at one of our automotive customers.

3. Better Signal Quality Remove Clumsy Analog Cables

As previously mentioned, the SIRUS RT systems offer high-end signal conditioning amplifiers based on world-class SIRIUS data acquisition technology.

In practice, this means that perfectly conditioned signals are transmitted to the test bench controller digitally via a single EtherCAT cable instead of sending each individual channel via analog cable, which requires hundreds of meters of analog cables.

This greatly removes the chance of catching any noise and other unwanted frequencies and also greatly reduces the chance of wiring errors. 

SIRIUS® R8rt and R8Rrt

The SIRIUS® R8rt and R8Rrt systems pack the highest density of analog input channels. They can be configured with the following input configurations:

  • Up to 128 analog channels

  • Up to 64 counter/encoder channels

  • Up to 192 digital channels

Any of the available SIRIUS® signal amplifiers can be configured on the R8rt system. See the amplifiers section below for available options.

The SIRIUS® R8Rrt chassis is upgraded to withstand high shocks and 3 gRMS random vibrations for 10 minutes in each direction. R8Rrt systems can easily be installed in most shock and vibration environments such as rocket launch platforms.

If you need a rugged, high-channel-count data acquisition system with a real-time low latency data output then SIRIUS® R8rt systems are the best option on the market. Period.

SIRIUS® R4rt / R4rt-HUB

The SIRIUS® R4rt and R4rt-HUB systems offer a lower density of input channels than R8rt but also in a smaller mainframe chassis. The systems can be configured with the following input configurations:

  • Up to 64 analog inputs

  • Up to 32 counter encoder inputs

  • Up to 96 digital inputs

Any of the available SIRIUS® signal amplifiers can be configured on the SIRIUS® R4rt and R4rt-HUB systems. See the amplifiers section below for available options.

SIRIUS® R4rt is configured with a powerful built-in SBOX data processing computer and SSD logging capability and can run as a standalone DAQ. The SIRIUS® R4rt-HUB system replaces the SBOX computer with a USB hub and can be connected to an external PC computer for data storage and processing.


The SIRIUS® R2rt and R2rt-HUB systems are the smallest mainframe chassis with the smallest density of input channels inside one box. The systems can be configured with the following input configurations:

  • Up to 32 analog input channels

  • Up to 16 counter/encoder channels

  • Up to 48 digital input channels

Any of the available SIRIUS signal amplifiers can be configured on the R2rt systems. See the amplifiers section below for available options.

SIRIUS® R2rt is configured with a powerful built-in SBOX data processing computer and SSD logging capability and can run as a standalone DAQ. The SIRIUS® R2rt-HUB system replaces the SBOX computer with a USB hub and can be connected to an external PC computer for data storage and processing.

SIRIUS® modular system

If you prefer modularity we provide the same real-time capability within small SIRIUS® modular slices with EtherCAT® data interface (SIRIUSe).

Similarly to the bigger SIRIUS® RT rack units, SIRIUS® modular slices can use the USB interface to store the full-speed data to the connected PC running DewesoftX software and in parallel use the EtherCAT® interface to feed reduced data with low latency to external EtherCAT® masters.

SIRIUS® modular slices come in the following channel configurations:

  • Up to 8 or 16 analog channels

  • Up to 8 counter/encoder channels

  • Up to 24 digital channels

Any of the available SIRIUS signal amplifiers can be configured on the SIRIUS EtherCAT system. See the amplifiers section below for available options.

Extend channel count with multiple SIRIUS® RT devices

When you need to scale your data acquisition system and extend input channels you can easily connect and synchronize multiple SIRIUS® RT devices. Any number of SIRIUS® R8rt, R4rt, R2rt, and/or SIRIUS® modular EtherCAT® units can be daisy-chained and combined to reach the desired channel configuration. There are virtually no limits on how to configure larger systems.

SIRIUS® signal conditioning technology

Data acquisition systems are built around our world-class SIRIUS® signal conditioning technology and offer the same top-performing technologies:

  • DualCoreADC® technology: high-dynamic range and signal-to-noise ratio (SNR).

  • SuperCounter® technology: high-speed synchronized angle and speed measurement.

  • Galvanic isolation: channel-to-channel and channel-to-ground isolation for best signal quality and safety.

Note: galvanic isolation does not apply to SIRIUS mini and MINITAURs instruments.

Available signal amplifiers

SIRIUS® data acquisition systems offer different signal conditioning amplifiers grouped into three main amplifier families.

DualCoreADC® amplifiers

High dynamic range inputs (160dB)

These amplifiers feature dual 24-bit Delta-sigma ADC. Each channel amplifier has two A/D converters that measure the high and the low gain of the input signal in parallel. This results in the full possible measuring range of the sensor and prevents the signal from being clipped. 

With DualCoreADC technology, SIRIUS data acquisition systems achieve more than 130 dB signal-to-noise ratio and more than 160 dB in dynamic range. This is 20x better than 24-bit DAQ systems and 20x less noise.

Each channel is capable of acquiring the input signal at a 200 kS/s sampling rate.

High-density (HD) amplifiers

Same Speed. More Channels. Optimized Price. 

High-density (HD) amplifiers are built with the same dual 24-bit Delta-sigma ADC with an anti-aliasing filter and 200 kS/s sampling rate per channel. The main difference to DualCoreADC® amplifiers is that HD amplifiers use each of the two Delta-sigma ADCs as separate input and thus double the number of input channels while still keeping great signal-to-noise and dynamic range specs.

SIRIUS high-density signal conditioning cards thus offer double the input channels (16 analog channels) in the same chassis enclosure. These modules offer the best price-per-channel-to-performance ratio.

High-speed (HS) amplifiers

16-bit SAR ADC with high-speed sampling

SIRIUS® high-speed (HS) amplifiers are equipped with 16-bit SAR ADC. They offer high bandwidth and acquisition rates of up to 1 MS/s sample rate per channel. These amplifiers are suitable for recording fast transients and for applications where a high sampling rate is a must (such as power analysis).

The SIRIUS® modules with high-speed (HS) signal conditioning amplifiers are available in 8 analog input channel configurations.

DualCoreADC® amplifiers (8 analog channels per slice, Dual 24-bit Sigma-Delta ADC, 200 kS/s/channel)
ACCExt. shunt
CHGExt. shunt
MIC200Ext. shunt
High-density (HD) amplifiers (16 analog channels per slice, 24-bit Sigma-Delta ADC, 200 kS/s/channel)
ACCExt. shunt
High-speed (HS) amplifiers (8 analog channels per slice, 16-bit SAR ADC, 1 MS/s/channel)
ACCExt. shunt
CHGExt. shunt

*DSI = Dewesoft Sensor Interface. Learn more about DSI adapters.

See full SIRIUS technical specifications for detailed specs about the SIRIUS DAQ systems and its amplifiers.

DualCoreADC® signal conditioning technology

The DualCoreADC® technology solves often-faced problems with signal measurement:

  • signal input overload,

  • noise, and

  • artificial frequencies in the signal caused by aliasing.

The input signal can be higher than expected by the signal conditioner (out-of-range) and therefore clipped by the ADC. This will result in an incorrect measurement and will require you to repeat the test all over again.

DualCoreADC technology prevents these problems. Each channel amplifier has two A/D converters that measure the high and the low gain of the input signal in parallel. This results in the full possible measuring range of the sensor and prevents the signal from being clipped. 

With DualCoreADC technology, SIRIUS data acquisition systems achieve more than 130 dB signal-to-noise ratio and more than 160 dB in dynamic range. This is 20x better than 24-bit DAQ systems and 20x less noise.

Channel-to-channel galvanic isolation

SIRIUS DAQ devices offer high galvanic channel-to-channel and channel-to-ground isolation (±1000 V). The DAQ systems even offer isolated sensor excitation.

With such isolation, we have no problem measuring high voltage potentials and no problem with common-mode voltages. We are also safe with measurements like vibrations, temperatures, or any other measurement where non-isolated sensors are placed next to the high voltage potential against the DAQ system ground. In such cases, a non-isolated DAQ system would burn or at least give faulty wrong results. With SIRIUS it is just one thing less to worry about.

Digital isolation has another big advantage - preserving the frequency bandwidth of the amplifiers. SIRIUS provides "worry-free" measurements, less noise, no ground loops, and the best possible signal quality.

For less demanding measurement and lower-cost applications, SIRIUS DAQs are also available in a differential version where only power supply isolation is offered.

SuperCounters®: precise speed and angle measurement with counter and encoder sensors

Dewesoft data acquisition systems utilize a patented and registered trademark technology called SuperCounter®.

Counter inputs can measure the RPM and angle of rotating machines. In comparison to standard counters, which only output integer numbers one sample later (e.g. 1, 1, 2, 2, 3, 4), the Dewesoft SuperCounter inputs are able to extract accurate values like 1.37, 1.87, 2.37, etc. fully synchronized for time and amplitude.

This is done by measuring the exact time of the rising edge of the signal with an additional counter. Our SuperCounter inputs work on a 102.4 MHz time base, independent of the current analog sampling rate.

Counter inputs are fully synchronized with analog, CAN bus, and other data sources to enable easy applications like balancing, order tracking, and torsional vibrations.

Powerful SBOX processing computer built-in

SIRIUS® RT systems include a power SBOX processing computer for data processing and storage. SBOX computers are equipped with an Intel Core CPU:

  • SIRIUS R8rt/R8Rrt: Intel® Core™ i5 (I5-1145G7E) 4x 1.5 GHz base, 4.1 GHz max 8 threads. 32 GB RAM (optional 48 GB).

  • SIRIUS R4rt: Intel® Core™ i7; 2x 2.6 GHz base, 3.4 GHz max; 4 threads. 8GB RAM (optional up to 32 GB).

  • SIRIUS R2rt: Intel® Core™ i7; 2x 2.6 GHz base, 3.4 GHz max; 4 threads. 8GB RAM (optional up to 32 GB).

All systems pack enough processing power needed for data acquisition and real-time signal processing. The SBOX computer is running our award-winning DewesoftX data acquisition software​​​​​​​.

Reach connectivity and expansion ports

  • Internal 10 or 100 GPS/GNSS sensor with antenna

  • 2x GLAN and 1x WiFi

  • 4x USB 3.0 ports

  • HDMI

  • Power In/Out

  • Synchronization ports

  • EtherCAT® expansion port

EtherCAT® expansion port

All SIRIUS® RT data acquisition systems with SBOX are equipped with the EtherCAT® expansion port. The expansion port can be used to extend and distribute additional channels with any of our EtherCAT-based DAQ devices like the SIRIUS modular or KRYPTON.

EtherCAT® expansion port is equipped with a hardware synchronization hub that synchronizes all connected devices automatically.

The devices can be distributed with a single EtherCAT® cable. The same cable provides power, data, and synchronization to all the connected devices. The EtherCAT® cable can span up to 50 meters between the connected nodes.

3rd party EtherCAT® master compatibility

SIRIUS® RT systems are compatible and can feed the real-time data to the following 3rd party EtherCAT® masters:

  • Acontis

  • AVL Puma

  • Beckhoff TwinCAT

  • Clemessy Syclone

  • Codesys

  • Inova

  • Instron Labtronic

  • MathWorks Simulink

  • MTS FlexTest

  • NI LabVIEW

  • RT-Labs SOEM

Note: not all SIRIUS amplifiers are yet compatible with all 3rd party masters. Please consult Dewesoft local sales distributor for compatibility.

CAN and CAN FD interface

SIRIUS® signal conditioning slices are equipped with one CAN/CAN FD port for analyzing CAN bus data. Additionally, we provide a CAN-only SIRIUS® module that fits 9 CAN ports into one SIRIUS® module.

CAN interface supports transmitting and receiving CAN 2.0b data at a full speed of 1 Mbit/s. CAN FD interface supports high-speed CAN interface with data rates up to 8 Mbps. They are also compatible and allow decoding of J1939, J1587, and OBD II on CAN data as well.

All CAN channels are isolated for worry-free CAN acquisition in noisy environments and for maximum signal quality.

SIRIUS® CAN interface adds the possibility to:

  • Capture and synchronize CAN bus data with your analog inputs.

  • Advanced CAN recording, storing, and analysis.

  • Online monitoring and decoding of CAN messages.

  • Offline CAN message decoding.

  • Visual display for displaying CAN data.

  • Online and offline math analysis of CAN channels.

  • CAN DBC file import and export.

  • OBDII on CAN, J1939, and XCP/CCP support.

  • CAN transmit.

Integrated GNSS positioning with RTK correction

SBOX computers can optionally be equipped with a 10 Hz or 100 Hz GNSS receiver for precise position measurement applications. GNSS receivers can optionally also be configured to support RTK correction (Real-Time Kinematics).

GNSS receiver option will transform your data acquisition system and makes it ideal for precise position-based test and measurement applications. The RTK correction option will improve the positioning accuracy down to 1 cm.

SBOX with GNSS receiver will transform the data acquisition system into a powerful automotive data logger for advanced position-based test and measurement applications such as:

  • Brake testing

  • ADAS testing

  • Pass-by-noise

  • Vehicle dynamics

  • Road load data

  • and others.

Applications Customer Case Studies and Application Notes

Learn how our customers are deploying SIRIUS RT data acquisition and control systems in real-world, mission-critical test and measurement scenarios and how the systems can save up to 50% of instrumentation costs:

  • Rocket Engine Test on the ESA's Test Bench For Large Solid Propellant Boosters

  • Road Load Data Logger and Signal Conditioning for MTS Test Bench


Award-Winning Data Acquisition Software Included for Free

Dewesoft data acquisition systems are bundled with award-winning DewesoftX data acquisition software. It is the world's most advanced and easy-to-use data recording and signal processing software. Software and hardware work together like magic. It offers simplicity as well as deep functionality to tackle any test and measurement task.

And the best part? You get lifetime FREE software updates and technical support. Software is evolving all the time. New major releases are released every 3 months constantly adding new features, optimizations, and other improvements. There are no hidden costs and will remain free forever.

Plug and Play

Connecting the DAQ system and sensors could not be faster or easier. DewesoftX software will automatically detect the connected DAQ systems and TEDS-equipped sensors will configure the channel configuration automatically. Features like:

  • Hardware auto-detection.

  • Smart sensors.

  • Sensor database.

  • Advanced TEDS sensor support.

  • Built-in unit conversion.

  • Real-time signal preview.

  • Wiring schematics.

will make you ready for measurement in seconds. Spend less time configuring your DAQ hardware and be more productive. Time is money!

Measure and Store

Powerful storing capabilities with more than 500 MB/s sustained stream rates mean you can always store data at full speed and never again worry about losing data that could compromise your tests. DewesoftX storing features offer:

  • Real-time data acquisition.

  • Synchronized acquisition of analog, counter, video, GPS, CAN bus, and many other sources.

  • Advanced triggering and alarms.

  • Single or multi-file storage.

  • Remote and distributed network storing.

  • Automated test sequences.

Even if you store gigabytes of data, our innovative data file format​​​​​​​ will ensure you can reload and analyze your data as fast as in a blink of an eye.

Analyse and Publish

NVH, structural testing, power analysis, and more. Forget about using several complex software solutions to record and analyze your data. DewesoftX offers one-stop shop for all test and measurement tasks. Our software offers:

  • Online and offline mathematics.

  • Flexible real-time visual displays.

  • Synchronized video support.

  • PDF and Word reporting tools.

  • Data export to many standard file formats.

  • Unlimited FREE license seats to view and analyze stored data.

DewesoftX is designed with the mindset of a test engineer and offers a complete testing solution in a single software package that is easy and joy to use.

Lifetime Free Updates

We are offering no-bluff or hidden cost licensing model for our data acquisition software. A new major version is released every three months bringing new features, performance boosts, bugfixes, with no additional cost to you. All updates for our existing users are free forever.

Unlimited License Seats

Our licensing model offers unlimited seats for analysing the recorded data. The recorded data file will bundle the license. Simply share data file with your colleagues and they can download software for free and ready to fully analyze the data. No additional licenses are needed.

Free Technical Support

We are putting our customers first. Free worldwide technical support is available for our DAQ software and hardware. Our technical support team is responsive and will attend to every support request and solve it in the fastest possible manner. Local technical support in our local offices is also available for you at no extra cost.

Lovedby Many Engineers

Dewesoft has transformed our approach to measurements. Prior to using Dewesoft, it would take us hours or even days to set up our measurement equipment. But now, everything can be done in a matter of minutes. With a clear data overview and multiple export formats, our work has become much more efficient. We greatly appreciate the almost instant support and assistance provided by Dewesoft. Any special requests or suggestions are addressed in a very short time. Truly, Dewesoft is the ultimate Swiss knife of the measurement world.

In our sport, where year-by-year data is the cornerstone of performance, having a partner like Dewesoft by our side is an irreplaceable source of success. Our focus is no longer on collecting data, but on finding the necessary resources of engineers to work on it!

Again, thanks for all of the new features that are being included in DewesoftX. It is already a fantastic product and deserves to become the Microsoft Word of data acquisition software.

We absolutely enjoy using the Dewesoft data acquisition equipment and its software. I think of it as the Porsche 911 of data acquisition (my dream car/our dream test equipment).

FAQFrequently asked questions

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