
If you have an older model of SMA Sunny Boy, but want to upgrade your monitoring and control, there’s a simple way to do so: the SMA RS485 Card. Bring outdated Sunny Boys into the modern era with RS485 protocol.
Have an older model of SMA Sunny Boy inverter? Want to improve your monitoring and control capabilities without replacing the entire unit? The SMA RS485 Card is a quick and easy retrofit that brings your inverter into the modern era of solar power. This communication card offers a straightforward way to link your inverter into more advanced monitoring systems, giving you immediate confidence and clarity about your system’s performance.
The RS485 Card is designed for older Sunny Boy inverters from the 10, 11, and 12 series, enabling them to communicate using the RS485 protocol. This protocol is a standard method for devices to “talk” to each other through a wired bus line connected to a central controller or monitoring system. In simple terms, it allows your inverter to become part of a networked system that your monitoring hub can see and manage. Once installed, your inverter can share performance data, integrate into a centralized monitoring platform, and operate more cohesively with other inverters instead of functioning in isolation.
Why would you want your inverter connected to RS485? This easy retrofit allows you to monitor your system from a single location rather than checking each inverter manually. If you're expanding your system and adding additional inverters, the RS485 Card lets you link them all into one monitoring interface. This brings older equipment up to the communication standards used in modern solar systems, future-proofing your inverter’s ability to integrate with broader system monitoring.
Here are a few exceptional features that make this upgrade an ideal retrofit solution:
When you purchase the RS485 Card from PowerStore, you’ll receive the communication module that installs directly into your inverter’s communication slot. Before installation, confirm your inverter model is compatible and ensure safe installation conditions by de-energizing both the AC and DC sides. You’ll also need the appropriate cabling and a compatible monitoring device since RS485 uses a wired bus connection and is not a simple plug-and-play module.
Once installed, this module gives you improved system insights by making your inverter part of a unified monitoring setup. If you manage multiple inverters, you’ll reduce manual checks and consolidate system oversight. Enhanced analytics and system alerts allow you to make more informed decisions, improve system efficiency, and extend the usefulness of your existing equipment without upgrading the entire inverter.
This product is ideal for solar system owners with legacy SMA Sunny Boy inverters who want to integrate them into a modern monitoring or control system. The SMA RS485 Card provides an affordable and reliable retrofit that transforms older Sunny Boys into network-ready devices. With RS485 communication in place, you retain your investment while gaining the ability to network multiple devices, centralize monitoring, and manage your solar system more intelligently.
If you’re ready to upgrade your inverter’s communication with a simple add-on, contact PowerStore to learn more about the SMA RS485 Card and how it can modernize your solar system.








