OCPP 1.6J vs OCPP 2.0.1
Compare established OCPP 1.6J workflows with the broader device-management capabilities of OCPP 2.0.1.
Published October 30, 2026OCPP 1.6J
OCPP 1.6J is widely deployed and covers the core workflows many operators need: status, authorization, transactions, meter values, configuration and common remote commands. The J suffix refers to JSON over WebSocket transport.
OCPP 2.0.1
OCPP 2.0.1 introduces a substantially revised message model with stronger device management, security and support for newer charging use cases. It is not a drop-in extension of 1.6J, so both charger and CSMS implementations must be tested against the required profiles.
EVEREST CSMS status
EVEREST CSMS has working communication with compatible chargers using OCPP 1.6J and OCPP 2.0.1. Supported functions depend on the charger model, firmware and enabled feature profiles. Confirm the required workflows with Karma Alytix before deployment.