SolarTools Gateway: Every Field Device on the Platform with One Box
The Gateway Standard Kit reads your Modbus devices, keeps data when the link drops, and is configured and updated remotely from the portal.

The hardest part of an energy monitoring project is getting data reliably from field devices. The SolarTools Gateway Standard Kit (STG-100) solves it in one box: it reads meter, analyzer, inverter and PLC data and sends it securely to the platform.
Field connectivity
2x RS485, CAN-bus and GPIO. Connects directly to Modbus RTU/TCP devices.
No data loss
If the internet drops, data is stored on the device and sent in order later.
Remote management
Configuration is deployed from the portal in one command. Software updates OTA.
Templates
Turn device profiles into templates and apply them to many gateways in one click.
How it works
Get started in three steps
- 1
Mount on DIN rail
Install in the panel with a 7–36 V DC supply.
- 2
Connect devices
Wire meters and analyzers to RS485; connect to the internet via Ethernet or 4G.
- 3
Configure from the portal
Prepare the register map in the portal and send it to the gateway remotely.
Who is it for?
Who benefits most?
Factories
Monitoring energy per line and machine.
Solar plants
Collecting inverter and meter data in one place.
Industrial zones and multi-site
Bringing scattered meters together centrally.
System integrators
Looking for fast, standard field connectivity.
Details
Technical specifications
| Feature | Value |
|---|---|
| Processor | 64-bit quad-core |
| Memory | 2 GB RAM · 8 GB eMMC |
| Field interfaces | 2x RS485 · 1x CAN-bus · GPIO |
| Network | Gigabit Ethernet · 4G/5G/LoRa expansion |
| Power | 7–36 V DC |
| Mounting | DIN rail |
Gallery
Take a closer look




FAQ
Common questions
Which protocols does the gateway support?
Modbus RTU/TCP and CAN in the field. On the platform side it extends with MQTT, OPC UA and other connectors.
Is data lost if the internet drops?
No. Data is written to the device's storage first and sent in order when the connection returns.
Can I use my own hardware?
Yes. The gateway software can also run on an industrial PC, Raspberry Pi or an Ubuntu/Debian server.
See the datasheet on the Downloads page or explore the device page for technical details.
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