Tecell’s Charge Management System (CMS) maintains session integrity when a charger switches from OCPP 1.6J to OCPP 2.0.1 mid-session by preserving session data and ensuring protocol compatibility through dynamic adaptation. The system automatically reconciles differences in message formats and command structures between the two versions without interrupting ongoing charging processes.
How session synchronization works in practice
In real-world deployments, Tecell CMS monitors active sessions and detects version changes at the charger level. When a transition occurs, the system uses a hybrid message translation layer to map OCPP 1.6J commands to their OCPP 2.0.1 equivalents. This allows operators to maintain continuous service while ensuring compliance with newer protocol standards.
The CMS also logs all version transitions for audit purposes, enabling operators to track which chargers are running which protocols. This is particularly useful for fleet managers who need to ensure consistent behavior across mixed-version deployments.
What this means for charging operators
For operators managing mixed-version fleets, Tecell’s approach minimizes operational disruption. Sessions do not terminate unexpectedly, and charging continues seamlessly even when individual chargers upgrade or switch protocols. This capability is especially valuable in large-scale deployments where chargers may be upgraded over time rather than replaced entirely.
Operators also benefit from reduced support overhead, as the system handles protocol transitions without requiring manual intervention. This allows them to focus on other aspects of fleet management while maintaining high availability and compliance.
Related Reading
For more on related topics, see: Effortless EV Charger Testing: Tecell’s Free OCPP 1.6 Compatibility Suite – Tecell.
Further reading: Tecell CMS – EV Roaming Hub & OCPI Platform | India & Global
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