An extensible Windows service framework for integrating building automation systems with third-party applications using EcoStruxure™ Web Services (EWS).
Smart Connector lets developers write Processors (scheduled tasks) and REST endpoints that bridge Schneider Electric systems with external data sources — weather APIs, energy analytics, IoT platforms, and more.
| Framework | .NET Framework 4.8 · C# |
| Runtime | Windows Service |
| Protocols | EWS SOAP 1.1/1.2 · REST/JSON · Syslog |
| Current SDK | v2.6 |
| Guide | Description |
|---|---|
| Developer Guide | Architecture, Quick Start, Extension development, full SDK reference |
| RESTful EWS Gateway | REST API reference for building automation data (values, alarms, trends, subscriptions) |
| Migration Guide | Upgrading to SDK v2.6 — breaking changes, NuGet feed migration, new features |
| How-To Guides | Task-oriented recipes: bulk writes, cron scheduling, REST auth, syslog, trend logs with backfill, safe scheduled processors, and more |
Time to first build: ~10 minutes
-
Configure the NuGet feed — add the GitHub Packages source for
SchneiderElectricBuildings:dotnet nuget add source "https://nuget.pkg.github.com/SchneiderElectricBuildings/index.json" ` --name "SmartConnector" --username YOUR_USERNAME --password YOUR_PAT
Your PAT needs
read:packagesscope only. See the full instructions. -
Create a class library targeting .NET Framework 4.8.
-
Add NuGet packages:
Mongoose.Process(provides theProcessorbase class),Mongoose.Ews.Server.Data(providesEwsServerDataAdapter), andSxL.Common(providesLogger). -
Write a Processor — see the Quick Start walkthrough or the sample project.
-
Deploy the compiled DLL to the Smart Connector Extensions folder and configure via the Portal.
| Project | Description |
|---|---|
| QuickStart.HelloEws | Minimal Processor that writes a UTC timestamp to an EWS ValueItem |
| SmartConnector.WeatherExtension | The Developer Guide "Develop an Extension" walkthrough, fully implemented — fetches current conditions and a 3-day forecast from OpenWeatherMap and demonstrates self-provisioning, per-cycle trend sampling, a phased cycle, and a re-entrancy guard |
| SmartConnector.GridStatusExtension | Full reference extension — fetches North American grid signals (prices, load, fuel mix, carbon) and demonstrates self-provisioning, trend logs with backfill, a phased update cycle, and a re-entrancy guard |
| SmartConnector.EntsoeExtension | Full reference extension — fetches European energy-market data (prices, load, generation) with multi-zone support, using the same production patterns as the Grid Status example |
See SECURITY.md for vulnerability reporting.
Copyright © 2017–2026 Schneider Electric. All rights reserved.