Documentation
Learn how to test an OCPP 1.6J CSMS with a browser-based virtual charger, understand the protocol and diagnose connection problems.
Getting started
Make your first browser-to-CSMS connection and send a BootNotification in under a minute.
What is OCPP?
An introduction to OCPP, the CSMS and the Charge Point, with the core message vocabulary.
OCPP 1.6 simulator
How the simulator implements OCPP 1.6J framing, presets and the supported message set.
Connect your CSMS
Endpoint requirements, origin handling and the authentication limitations of browser connections.
Troubleshooting WebSocket
Common reasons a browser-originated WebSocket connection to a CSMS fails, and what to try.