How Do You Differentiate EnDat Versions?

MC How do You Differientate EnDat Versions 1 400

May 26, 2022


EnDat is a digital, bidirectional interface for encoders developed by Heidenhain. It can transmit position values from incremental and absolute encoders as well as transmit or update information stored in the encoder. There are several versions of EnDat and it can be confusing to tell them apart. STOBER breaks down the difference between EnDat 2.1 and 2.2.

EnDat 2.1

EnDat 2.1 was the market standard. This version allowed the transfer of position values both digitally and via analog through incremental signals. Part of the signal was binary and part was analog. EnDat 2.1 combined the digital and analog signals to send information. Combining digital and analog has the benefit of preventing interference.

EnDat 2.2

EnDat 2.2 is an upgrade from 2.1  Today, EnDat 2.2 is utilized as pure digital.

Since EnDat 2.2 has a serial interface, it is better suited for safety-related applications. There are two channels—a signal and a backup of that signal. The more signal validation, the better for these types of applications.

EnDat 2.2 allows additional data to be transferred with the position value without sending a separate request. There are several other advantages including:

  • •Increased clock frequency — counter in smaller increments of time and more frequently
  • •Optimized calculating time — takes information, does calculations, and sends information back and forth more quickly. This is ideal for safety because there is a shorter window to have feedback.
  • •Faster recovery time
  • •Larger power supply range — EnDat 2.1 had limited voltage range. With the upgrade to 2.2, the potential combinations are greater.

STOBER geared motors and motors are compatible with both EnDat 2.1 and EnDat 2.2.

STOBER EnDat 2.1 Solutions for:

  • •Siemens
  • •Kollmorgen
  • •Control Techniques
  • •Bosch
  • •Beckhoff
  • •B&R

STOBER EnDat 2.2 Solutions for:

  • •Siemens
  • •B&R
  • •Allen-Bradley/Rockwell

MC How do You Differientate EnDat Versions 2 400



STOBER’s products can be optimized to ensure your application has the best encoder. Visit their website for more information by clicking here




Related Articles

  • Humber College Receives $30 Million Gift from the Barrett Family Foundation

    Humber College Receives $30 Million Gift from the Barrett Family Foundation

    January 27, 2023 Humber College is the recipient of a $30 million gift from the Barrett Family Foundation, marking the largest single donation made to an Ontario college. Combined with their donations to Humber’s Unlimited Campaign, the Barrett Family Foundation has given a total of $42 million, making their donation the largest in Canadian college history…. Read More…

Latest Articles

  • Energy Technology Perspectives 2023

    Energy Technology Perspectives 2023

    Energy Technology Perspectives 2023 highlights major market and employment opportunities, as well as the emerging risks, for countries racing to lead the clean energy industries of today and tomorrow. The energy world is at the dawn of a new industrial age – the age of clean energy technology manufacturing – that is creating major new markets and millions of jobs but also raising new risks, prompting countries across the globe to devise industrial strategies to secure their place in the new global energy economy, according to a major new IEA report. Read More…

  • Robotics: A Dynamic and Important Sector for Cables

    Robotics: A Dynamic and Important Sector for Cables

    Robotics, a key industry: experts discuss trends, opportunities and challenges January 23, 2023 New applications in robotics are constantly emerging as the industry continues to develop new solutions to efficiently manage complex tasks. Consequently, robotics is a key industrial sector for HELUKABEL – cables and wires are, after all, indispensable in all types of robots…. Read More…

Featured Article

Access Management for Your Plant and Machinery

With PILZ’s “Identification and Access Management” portfolio, they offer you a comprehensive range of products, solutions and software for the implementation of safety as well as security tasks. Below you’ll discover more about potential applications, from simple authentication to complex access permissions, and access management through to safe operating mode selection, maintenance safeguarding and safeguarding of data and networks. Experience safety and security in one system!

This solution ensures that a machine cannot resume operation while people are still in the danger zone. The maintenance safeguarding system “key-in-pocket” is designed for machines with danger zones, which are protected by a safety fence and which staff need to access – robot cells for example. In comparison with conventional lockout-tagout (LOTO) systems, maintenance safeguarding with the key-in-pocket solution is implemented via RFID keys with corresponding permissions and a safe list in the PILZ controllers. As a result, it provides a purely electronic restart protection and makes both mechanical interlocking devices and warning tags redundant.

Read more


  • New Options Added To Hammond Power Solutions’ HPS Centurion P And HPS Sentinel Lines

    Capacitor Contactor Option Available For HPS Centurion P Passive Harmonic Filter January 25, 2023 The capacitor contactor option allows the user to open and close a contact, removing the capacitors from the circuit. The user can control the contactor by providing configurable contact output from the VFD which opens at light load. Passive Harmonic Filter… Read More…

  • Festo Introduces VZXA, A Uniquely Engineered Angle Seat Valve

    January 24, 2023 The new Festo VZXA family of pneumatically actuated angle seat valves delivers installation, maintenance, operational, and inventory benefits thanks to a unique modular design. When a VZXA actuator is removed for maintenance or changeover, for example, the stem, seat, and seal stay inside the valve body, allowing the process system to remain… Read More…