Battery Stack Control | Discover Energy Systems

The following supports Modbus Function Code 03 (Read Holding Registers), 06 (Write Single Holding Register), and 10 (Write Multiple Consecutive Holding Registers).

Register Address	Data Type	Description	Data	Note
61001	UINT16	Enable High Voltage on Stack	0 – N/A 1 – Enable power on 2 – All cluster disconnect relays, power off	EMS sends BMS the enable signal
61002	UINT16	Turn off insulation detection	0 – N/A 1 – Turn off insulation detection 2 – Turn on but skip post-on check 3 – Turn on + polling	Other values are not applicable
61003	UINT16	Open battery stack fault resumption	0 – Disable fault reset 1 – Enable fault reset	Other values are not applicable
61004	UINT16	Reserved	—	Empty
61005	UINT16	PCS Fan Control	0 – N/A 1 – N/A	—
61006	UINT16	Cluster power-on enable 1–16	Bitwise enable for clusters 1–160 – Not enabled 1 – Enabled Bit 0 – Cluster 1 Bit 1 – Cluster 2...	Max 16 clusters (Bit mask: 16 bits)
61007	UINT16	Cluster power-on enable 17–32	Bitwise enable for clusters 17–320 – Not enabled 1 – Enabled Bit 0 – Cluster 17 Bit 1 – Cluster 18...	Max 16 clusters (Bit mask: 16 bits)