Protocol & Schema Reference

This section provides comprehensive reference documentation for all protocols and schemas supported by the Voltimax IoT Platform.

Compatible Devices

Browse our catalog of supported devices and learn about their capabilities:

• HTTP Devices - Devices that communicate via HTTP/REST APIs
• Modbus Devices - Industrial devices using Modbus TCP/RTU protocols

Metrics & Telemetry

Metrics Reference - Complete documentation of telemetry data formats:

• Battery metrics and state of charge
• Energy production and consumption
• PCS (Power Conversion System) / Inverter metrics
• Cooling system telemetry
• I/O signals and alarms

Communication Protocols

OCPP 2.1

Open Charge Point Protocol - Standard protocol for EV charging infrastructure:

• Authorization and user management
• Charging profiles and smart charging
• Diagnostics and firmware management
• Transaction handling
• Complete message catalog with 13 functional categories

SunSpec

SunSpec Models - Industry-standard data models for solar and energy storage:

• Common models (base information)
• Inverter models
• Meter and energy measurement
• Storage systems
• Environmental sensors
• 11 model categories covering 60+ device types

Modbus

Modbus Devices - Industrial automation protocol specifications:

• ABB B23 Energy Meter
• CNTE Battery Management System
• Eastron SDM630 Power Meter
• Growatt Inverter
• Peblar EV Charger
• Siemens PAC2200

Schema Documentation

All protocol references in this section are automatically generated from official specifications and schema files. They represent the exact data structures used by the platform.

Auto-Generated Content

This reference documentation is kept up-to-date through automated generation:

• Metrics - Generated from schemas/metrics/metrics.json
• OCPP - Generated from official OCPP 2.1 JSON schemas
• SunSpec - Generated from official SunSpec SMDX model files

Using This Reference

Each integration section includes:

• Overview - Introduction to the protocol and its purpose
• Message/Model Catalog - Complete list of data structures
• Field Definitions - Detailed field types, constraints, and descriptions
• Categorization - Logical grouping for easy navigation

This reference is designed to be used alongside the official protocol specifications and PDFs, providing a convenient, searchable alternative for quick lookups.

Need Integration Help?

For guidance on integrating these protocols into your systems:

• See the Developer Guide for code generation tools
• Refer to the User Guide for platform configuration