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The Glass CHP · Battery storage

Rack-BMS (Slave)

Ventilation/dehumidification — the silent 24/7 load, with heat recovery. Part of the glass family — like our glass BESS, biogas plant and CHP.

Rack-BMS (Slave)
Outdoor air → Fresh air → Heat recovery → Heating coil → Hall → Exhaust
Glass-box in 4 steps

Understand → See it live → What the AI does → Your benefit

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Understand
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See it live
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What the AI does
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Your benefit

What is the Rack-BMS (Slave)?

A Rack-BMS (Slave) is the local control unit within a battery energy storage system (BESS), which monitors and reads the cell group. According to IEC 62933-5-2, it ensures that the parameters of a battery unit remain within specified limits. It serves as the primary data basis for the Master-BMS to control the entire storage system.

No own register — honestly

For this component, no dedicated register is assigned; therefore, no example value is provided here. Where the system measures, the value is read as read-only and calculated internally. It is visible via connected components.

What the AI reads in this component

What the AI reads
  • Cell Voltages to identify degradation patterns
  • Temperature evolution to prevent thermal runaway
  • State of Charge (SoC) for precise energy quantity planning
  • Number of cycles to calculate remaining useful life (SoH)
Scenario

Monitored: continuous

The scenario: > Monitoring: continuous · Deviation over cycles The scenario: a slowly increasing deviation remains unprotected until capacity drops significantly. The AI: detects the steady trend early — ageing becomes predictable. It identifies the trend before the limit is reached.

Why it is important

Precise Rack-BMS data prevents premature cell ageing and maximises the usable lifespan of the BESS. By monitoring SoC and SoH, the optimal charging cycle can be calculated. This minimises module replacement costs and ensures the economic viability of the system. highest cell voltage (mV) · lowest (mV) → — mV spread Calculation: highest − lowest

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Standards & norms

What the rules require — Rack-BMS (Slave)

Grounded in the applicable national standards for battery energy storage systems. Same knowledge base as the European reference plant; presented anonymously.

Basis: the applicable national standards. Values shown are those measured on the plant, not target figures.