
Modbus TCP
SunSpec Model 806 — Flow Battery Model
SunSpec
Overview
SunSpec Model 806 is the Flow Battery Bank Model, part of the SunSpec Alliance Energy Storage specification for distributed energy resources. It represents a bank of flow battery strings connected in parallel, covering technologies such as vanadium redox, zinc-bromine, and iron-chromium cells. This Modbus TCP template exposes the model identifier, model length, and the battery bank descriptor register, giving your monitoring system a standardized entry point into the bank-level data layer. Integrating SunSpec Model 806 via ModbusCloud lets asset managers verify bank configuration and detect structural anomalies across multi-string flow battery installations.
Use cases
- Verify the SunSpec Model 806 identifier register to confirm correct bank-model discovery during commissioning.
- Track the model length register to validate that the full bank descriptor block is present and correctly sized.
- Monitor the battery bank descriptor to detect unexpected configuration changes between maintenance intervals.





