When deploying an EMS in the German market, PPC (Power Plus Communications) offers one of the most prominent hardware suites for the intelligent metering system (iMSys). However, looking at their product range, project developers often ask: "Do I just need the standard Smart Meter Gateway, or do I also need the CLS adapter and the Control Box (Steuerbox)?"

At Eniris, we integrate seamlessly with PPC’s architecture to ensure your infrastructure is not only compliant but also capable of the advanced, active optimization required for modern energy concepts.

Here is a clear breakdown of the PPC modules and what you actually need when using the Eniris EMS.

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2. The CLS Adapter (The "Green Module"): Why You Don't Need It

PPC offers an additional "green module" known as the CLS Adapter. Its purpose is to act as a translator, taking commands from the secure CLS interface and converting them into protocols like Modbus or EEBUS to steer the local assets.

• For Eniris Clients: Because the Eniris EMS (SmartgridOne) already possesses this intelligence and natively speaks these protocols, this green module is entirely unnecessary. The Eniris EMS essentially takes over this role, connecting directly to the built-in CLS port on the PPC SMGW to actively steer your batteries and EV chargers.

3. The FNN Steuerbox (Control Box): Essential for §14a

While the Eniris EMS handles the smart optimization, German grid regulations mandate a certified hardware fallback for emergency grid dimming.

• The Requirement: To comply with paragraph 14a (§14a EnWG), you must expand the setup with an FNN Steuerbox.
• How it works with PPC: PPC generally does not manufacture this module themselves, so it is often supplied by a partner manufacturer. The grid operator sends a secure emergency signal through the PPC SMGW to the Steuerbox. The Steuerbox then interfaces with the Eniris EMS, allowing our software to smoothly and intelligently dim the assets (Variant 2) to keep the total grid connection below the mandated 4.2 kW limit.

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