SunSpec Modbus Tool

🌞 SUNSPEC MODBUS TOOL
Discover, inspect, and control SunSpec/Modbus TCP devices on your network.

🛠 WHO IT’S FOR
Whether you’re an installer commissioning a new system, a system integrator validating a deployment, or a solar enthusiast curious about what’s on your LAN, this app gives you the answers in seconds — no cables, no vendor portals required.

🔍 DISCOVERY MODES
- Connect: probe one IP instantly.
- Scan: detect your subnet and probe hosts in a user-defined range in parallel.
- Works with local subnets or a reachable external subnet.
- Works with standard port 502 or a custom port.
- User-configurable timeout to work with slow devices.

📋 GENERIC MODBUS SUPPORT
- Generic Modbus detection: identifies Modbus TCP devices.
- Read registers / coils and, in plus version, write registers / coils.
- Useful for commissioning, diagnostics, and quick field changes.

📋 SUNSPEC SUPPORT
- SunSpec detection: validates the SunSpec "SunS" signature and reads Common Model data.
- Go beyond basic identification: read live data from the most common SunSpec models exposed by your device, including:

• Model 1 — Common (vendor, model, serial, firmware)
• Models 2-19 — Common and aggregator
• Models 101-103, 111-113 — Inverter (3‑phase, float)
• Models 120-145 — String, tracker, module, nameplate, settings, controls, status, events, and grid‑support functions
• Model 160 — Multiple MPPT extension
• Models 201-204, 211-214, 220 — Meters
• Models 302-308 — Tracker and environmental
• Models 401-404 — String combiner
• Models 501, 502, 601 — Miscellaneous
• Models 701–715 — Modern DER (Distributed Energy Resources) suite: AC measurements, capability, status, control, limits, ride‑through and frequency/voltage support
• Models 63001, 63002, 64001, 64020, 64101, 64111, 64112, 64410-64415 — Vendor extensions
• Models 801-809 — Battery

Polling/writing and importing custom SunSpec models are in the plus version.

🔒 PRIVACY
Runs locally on your device. Network traffic stays on your LAN.
Full privacy statement: https://pvhub.cloud/tools/sunspecmodbus/privacy

📱 REQUIREMENTS
- Android 7.0 or newer / Windows 10 or newer
- Same local network as target devices, or an externally reachable network path to them
- Modbus TCP enabled on target devices

🏷️ VERSIONS
For Windows: https://pvhub.cloud/tools/sunspecmodbus/download
For Android: https://play.google.com/store/apps/details?id=cloud.pvhub.sunspecmodbustool

🆘 SUPPORT
Please use the app's feedback form to report issues or request new features. Your feedback helps improve the app and expand support for additional devices and use cases.

ℹ️ NOTES
Modbus is an open industrial communication protocol widely used by automation and energy devices. SunSpec builds on Modbus by defining a standardized data model, enabling interoperable communication with most modern grid-tied inverters, including many models from Fronius, SMA, SolarEdge, KACO new energy, Huawei, and others.

Modbus TCP must be enabled in your device settings. Consult your device manual if discovery fails or if a non-default port is required.

This app is an independent tool and is not affiliated with the SunSpec Alliance or any manufacturer.