DATA ADDRESS TABLE | Discover Energy Systems

NOTE
The start and end addresses in the table are inclusive. Both the start and end register numbers are included in the valid address range. All addresses are expressed in decimal format, not hexadecimal. Use decimal values when configuring or querying the BMS via Modbus.

Start Address	End Address	Data Storage Instructions	Reference
1	1000	Provisionally reserved	—
1001	1100	Array (BAU) values and metrics, max 100 `UINT16` data	Full Battery Array Metrics
1101	1200	Array (BAU) status and other data, max 100 `UINT16` data	Full Battery Array Status
1201	1300	Reserved	—
1301	4500	Per Cluster metrics (BCU): 100 `UINT16`, max 32 clusters (100 × 32 = 3200)	Full Cluster Metrics
4501	5000	Battery cluster status	Full Cluster Status
10001	30000	BCU Cell voltage details, max 500 cells per cluster, 32 clusters (500 × 32 = 16000)	Cluster Cell Voltage Details
30001	38000	Temperature details, max 250 temps per cluster, 32 clusters (250 × 32 = 8000)	Cluster Cell Temperature
38001	50000	Reserved	—
50001	50300	Alarm parameters: 300 alarm fields	Alarm Parameter Information
50301	50400	System parameters: 100 reserved	System Operating Parameters
50401	50410	Time info: 10 reserved	Time Information
50501	52100	Cluster additional info: 50 fields × 32 clusters (50 × 32 = 1600)	Battery Cluster Control
52101	60000	Reserved	—
60101	60420	Relay status: 10 fields × 32 clusters (10 × 32 = 320)	Cluster Relay Status
61001	61100	Stack control data: 100 fields	Battery Stack Control
62001	62006	Liquid cooler operation status	TMS Status Information
62101	62105	Liquid cooler temperature and pressure data	TMS Data