Innovative and Secure Authentication and Multifactor Integration in Hazardous Areas

Pepperl+Fuchs Integrates RFID Reader Into VisuNet GXP HMI Platform and Enables Authentication up to Zone 1/21

  • The VisuNet GXP has a modular assembly and consists of the modules display unit, computer unit, and power supply, which are individually certified for explosion-hazardous areas. Picture: Pepperl+Fuchs
    The VisuNet GXP has a modular assembly and consists of the modules display unit, computer unit, and power supply, which are individually certified for explosion-hazardous areas. Picture: Pepperl+Fuchs
  • The VisuNet GXP with integrated RFID reader. Picture: Pepperl+Fuchs
    The VisuNet GXP with integrated RFID reader. Picture: Pepperl+Fuchs
  • The RFID20 component from Pepperl+Fuchs is also available as a stand-alone variant with approval for ATEX/IECEx Zone 2/22 and Division 2. Picture: Pepperl+Fuchs
    The RFID20 component from Pepperl+Fuchs is also available as a stand-alone variant with approval for ATEX/IECEx Zone 2/22 and Division 2. Picture: Pepperl+Fuchs
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The new VisuNet GXP is equipped with an RFID reader fully integrated into the display unit and supports common RFID-based access cards such as MIFARE® and LEGIC®. The authentication process can therefore be handled via the company ID card, for example. This not only optimizes the login process, but also improves security by clearly defining and automatically managing access rights. Companies that already use RFID card systems can continue to use their existing access cards without having to introduce additional hardware or new media.

Due to the integrated RFID reader, the device can be integrated into modern security concepts such as multi-factor authentication, in which several identification features are combined. Companies that need to comply with the highest security standards can supplement the VisuNet GXP with additional identification methods such as password entry or biometric recognition. This functionality is particularly important in industries with strict security requirements, including the pharmaceutical industry, chemical companies and the oil and gas sector, where regulatory requirements demand unique identification of operators.

The VisuNet GXP also offers five capacitive front buttons that enable quick and easy operation. The buttons are configurable and allow frequently used functions to be executed directly. For example, one button can be assigned as a home button to quickly return to the standard view. Another function allows the display brightness to be adjusted, which ensures optimum readability, especially in changing light conditions. To avoid unintentional inputs, the touch screen can be deactivated via one of the front buttons, for example during cleaning. The device also has a power button that can be flexibly configured or deactivated as required to prevent accidental switch-off during operation.

The combination of robust RFID technology, capacitive front buttons for intuitive operation, and flexible system integration makes the VisuNet GXP a future-ready solution for industrial environments with increased security requirements. Plant operators not only benefit from faster and more convenient logon, but can also adapt their access concepts to new security standards in the long term without having to completely replace existing infrastructure. 

Modular Assembly for Investment Security and Minimal Downtime

The modularly designed VisuNet GXP is divided into three interchangeable units, each of which is independently approved for use in hazardous areas: The display unit, the computing unit, and the power supply. This concept allows individual modules to be replaced directly in Zone 1/21 without having to remove the entire operator workstation. Anyone planning an upgrade can therefore integrate the latest hardware into the existing HMI system and extend the lifetime of the VisuNet GXP in the long term. If a component fails, the downtime is significantly reduced because the entire device does not have to be disconnected from the process. This flexibility means a high level of investment security for operators, as they can make hardware changes step by step and therefore always remain up to date. 

Software Diversity for Different Infrastructures

The VisuNet GXP is not only versatile on the hardware side, but also on the software side. In addition to Pepperl+Fuchs' own VisuNet RM Shell 6, which is based on Windows 10 IoT Enterprise LTSC 2021, the device also supports IGEL OS 11 and IGEL OS 12 based on Linux. The devices are also ThinManager Ready. This openness means that the VisuNet GXP can be seamlessly integrated into existing IT structures. Plant planners and engineers pursuing modern automation approaches benefit from a sustainable solution that can be efficiently adapted to individual requirements due to the modular hardware approach and broad software compatibility. 

Integration Into Common Identification and Authentication Systems

The RFID reader built into the VisuNet GXP is based on the RFID20 component from Pepperl+Fuchs. As a stand-alone component, it is certified for use in ATEX/IECEx Zone 2/22 and Division 2. It can be integrated into stainless steel housings and used directly in pharmaceutical and hygienic production environments. The RFID20 component is compatible with leading authentication systems such as PM-Logon from Siemens, LogOnPlus from Obion, and the Connected Worker Platform from Nymi, enabling easy integration into existing safety and identification solutions.

PM-Logon from Siemens plays a particularly important role in SIMATIC control systems. This software facilitates the logon process by automatically assigning a user identity to an RFID card. As soon as an authorized person holds their card up to the reader, they can log in to the target system without having to enter a password manually. This speeds up the logon process, minimizes operating errors, and at the same time meets high security requirements in production environments.

In addition to PM-Logon, the RFID20 component is compatible with LogOnPlus from Obion, a modular client-server solution that integrates seamlessly into various process control systems. It also supports Nymi's Connected Worker Platform, which enables biometric and wearable authentication, further increasing security standards in sensitive industries such as life sciences. 

RFID Integration and Proven Modularity in a Robust Solution for Hazardous Areas

With the combination of an integrated RFID reader, capacitive front keys for flexible operation, and a modular hardware design, the VisuNet GXP is a particularly attractive solution for demanding applications in Zone 1/21. Plant operators who require a forward-looking HMI platform with full RFID functionality in a hazardous environment are provided with an extremely robust, reliable, and expandable system. The fast, secure, and uncomplicated authentication via RFID card optimizes processes by minimizing sources of fault and reducing downtimes. This represents a decisive economic advantage for smooth operations. Compatibility with authentication systems such as PM-Logon, LogOnPlus, or the Connected Worker Platform ensures smooth integration into existing IT infrastructures. This makes the VisuNet GXP the optimal choice for plant operators who need future-oriented, flexible, and seamlessly integrable HMIs for demanding environments.

Author: Yannik Klein, Pepperl+Fuchs