WERMA Signaltechnik is once again expanding its successful "eSIGN" LED signal tower series with a new version featuring a PROFINET interface. The eSIGN series is already much more than a classic signal tower – it is a powerful visual communication system for machines, plants, and production environments. Now, the company's technological flagship offers even more flexibility for integration into complex automation environments – and once again demonstrates what signal technology looks like today: intelligent, networked, and uncompromisingly reliable.

Signal technology reimagined – now also with PROFINET

WERMA has redefined the classic signal tower with the eSIGN series: brilliant LED technology, freely programmable colors and light effects, full-surface signaling, and an elegant, modern industrial design that won the "iF design award 2025." With the new PROFINET version, development is now continuing consistently – towards a fully networked, real-time communicating signaling solution for Industry 4.0.

"With PROFINET, we are enabling our customers to integrate eSIGN even more easily and deeply into existing automation networks," explains Daniel Kensy, Head of Development at WERMA Signaltechnik. "This creates the basis for greater flexibility, easier handling, and maximum transparency in production."

Real-time communication and Power over Ethernet

The eSIGN PROFINET enables real-time communication between the signal device and the control system. Machine statuses can thus be displayed and evaluated without delay – a decisive advantage in automated and safety-relevant applications.

Another highlight: The device is powered via Power over Ethernet (PoE), meaning that data and energy are transmitted via a single cable. This significantly reduces installation costs and material costs and ensures a tidy, efficient system layout. The eSIGN PROFINET supports both PoE and PoE+ and is connected via a 4-pin M12 socket – robust, industry-standard, and future-proof.

Easy commissioning – intelligent diagnostics

Commissioning the new eSIGN is extremely easy: simply connect the device and it is automatically recognized by the network. It can then be integrated directly into the existing network topology.

In addition, the PROFINET version offers extended diagnostic options – errors in communication between the product and the control system are detected more quickly and localized more precisely. This allows the causes of errors to be traced immediately, which noticeably simplifies maintenance and service and increases system availability.

Even more flexibility in control

Compared to the IO-Link version, the new PROFINET variant offers even greater flexibility. Users can switch between all modes and colors and control each segment individually – ideal for dynamic processes in which statuses, warnings, or process progress must be visualized precisely.

This makes the eSIGN PROFINET not just a signal source, but an intelligent communication module that integrates seamlessly into any industrial environment.

PROFINET or IO-Link – complete freedom of choice for every application

With the introduction of the PROFINET version, WERMA now offers its customers two powerful communication variants within the same product family. While the previous IO-Link version is ideal for machine builders and applications with decentralized control architecture, the PROFINET version offers additional possibilities for use in large, networked production facilities and smart factory environments – including real-time communication, diagnostic functions, and PoE supply.

Future-proof signaling technology – developed for Industry 4.0

With the new PROFINET version, WERMA is underlining its role as an innovation leader in industrial signaling technology. eSIGN represents the future of signaling: modular, digitally networkable, and uncompromisingly reliable – developed for a world in which communication, safety, and efficiency go hand in hand. "With eSIGN PROFINET, we are more flexible than ever before," emphasizes Daniel Kensy. "Our customers can now control, visualize, and communicate in an even more targeted manner – easily, efficiently, and in real time."