Mannheim/Dresden, 27 May 2025 – A significant milestone in the digital energy transition has been reached. Robotron and PPC have successfully tested the interoperability of SMGWplus and Robotron GWA Manager, based on the new control profiles. These are based on the data model standards for the WAN interface of the SMGW (DIN VDE V 0418-63-8). This means that control specifications are transmitted to the smart meter gateway in a standardised and interoperable manner.

This goes one step further than the standard.

In the solution that was successfully tested, control signals are transferred from the Robotron GWA Manager to the SMGWplus in accordance with DIN VDE V 0418-63-8. After transmission from the Robotron GWA Manager, the control signal is processed directly in the SMGWplus. It is then forwarded in EEBUS format to a controllable system or an energy management system. In accordance with the nationwide VDE FNN recommendations for designing EnWG §14a, EEBUS is the minimum interface requirement between the MSB control device and controllable customer systems. The SMGWplus is a software product that can be retrofitted to all second-generation SMGW hardware via an update.

Control via SMGWplus is integrated into existing CLS/aEMT landscapes in a process-equivalent manner. This enables the parallel operation of control boxes, SMGWplus, CLS adapters and so on in Robotron IT systems.

This greatly simplifies installation and significantly accelerates the rollout of controls. The function is currently implemented in the test PKI and available for pilots. Based on the ‘Power Limitation’ functional package anchored in protection profile PP-0073 V2.0, the firmware will be certified in the near future and made available in the active PKI from 2026 onwards.

The successful implementation of the functional chain is also a highlight of the PPC Connect initiative, launched in 2024. “Our goal is to develop new applications for the smart metering system together,” says Ingo Schönberg, CEO of Power Plus Communications AG. “And always with a clear focus on standardised interfaces in the energy transition ecosystem.’ Only true interoperability enables easy customer participation.” In recognition of this successful collaboration, PPC presented Robotron with the PPC Connect Award at this year’s customer event, attended by over 250 people.

The partners are looking forward to the next steps with confidence, with further field tests and partner integrations already in preparation.