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UniStream, Unitronics’ PLC HMI all-in-one controller, now supports the ODVA’s Ethernet/IP Industrial Ethernet standard. UniStream successfully passed the ODVA conformance test and has been certified as compliant with the standard and interoperable with other Ethernet/IP devices.

UniStream can function simultaneously as both EtherNet/IP I/O scanner and adapter, exchanging I/O data via its two Ethernet ports with other Ethernet/IP-compliant devices. In addition, a single controller can contain multiple scanner and adapter definitions.

Combining UniStream and the Ethernet/IP protocol enables efficient I/O data exchange in real time, resulting in faster process control and benefiting other industrial automation applications.

Via Ethernet/IP, a UniStream controller can directly read the inputs and control the outputs of I/O blocks and compatible Ethernet/IP devices produced by other vendors. As a result, it is now easier to integrate the UniStream in plant-wide networks and motion control applications.

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Key features and benefits

  • No special software add-on or gateway is needed — only UniLogic, the all-in-one programming environment for UniStream, which is provided free of charge.
  • A simple, quick configuration task enables machine builders and automation control programmers to integrate Ethernet/IP communication into their projects.
  • The user enters Ethernet/IP parameters and assembly instances into an intuitive Ethernet/IP grid — no ladder programming is required.
  • Ethernet/IP is easier and less complicated to implement than many fieldbus protocols, which commonly require specialised training and knowledge.
  • Ethernet/IP can provide a simpler solution for many automation professionals who may not have intensive fieldbus background.
  • Another benefit is that it runs over standard, universally available Ethernet and IP networking equipment and protocols.
  • An additional advantage of Ethernet/IP is that it supports wireless transmission using industry-standard devices.
  • UniLogic offers embedded diagnostic tools, providing statistics about the Ethernet/IP communications that can aid in troubleshooting and optimising the application.
  • Using Ethernet/IP for both data and information communications boosts potential Internet of Things (IoT) applications that involve UniStream.
  • By supporting a variety of I/O interfaces and other fieldbus protocols to connect with industrial devices, a UniStream controller can act as an Ethernet/IP gateway, allowing Ethernet/IP automation control systems to connect with other unconnected devices.


For over 20 years, Unitronics has been a global leader in developing and manufacturing PLCs with onboard HMIs.

For over 20 years, Unitronics has been a global leader in developing and manufacturing PLCs with onboard HMIs. They were pioneers of this market, being one of the first companies to bridge the gap between PLC and HMI; forever changing industrial control processes. OEMs and systems integrators can rely on a single device; all while operating on a minimum of budget, programming time and wiring. Helping customers create the highest quality product, while meeting their budgetary and system requirements, is a top priority for Unitronics. Today the company can provide innovative products and services worldwide, through a network of global professionals, including a US subsidiary, and over 160 distributors in over 50 countries.

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