The following supports Modbus Function Code 03 (Read Holding Registers) only.
|
Register Address |
Data Type |
Description |
Unit / Notes |
|---|---|---|---|
|
1101 |
UINT16 |
Operation Status of Battery Stack |
Bit 0: Initialization status
|
|
1102 |
UINT16 |
Cluster Operation Flag |
Each bit identifies whether a cluster is in operation.
|
|
1103 |
UINT16 |
Cluster Connection Status |
0 - no fault, 1 - fault
|
|
1104 |
UINT16 |
Stack Ready Flag |
0 - not full, 1 - full |
|
1105 |
UINT16 |
Level 1 Alarm Flag |
Bit bitmask: 1–32 for L1 alarms. |
|
1106 |
UINT16 |
Level 2 Alarm Flag |
Bit bitmask: 1–32 for L2 alarms. |
|
1107 |
UINT16 |
Level 3 Alarm Flag |
Bit bitmask: 1–32 for L3 alarms. |
|
1108 |
UINT16 |
Communication Alarm Flag |
Bit bitmask: 1–32 for communication status. See Alarm Codes |
|
1109 |
UINT16 |
Hardware Fault Flag |
Bit bitmask: 1–32 for hardware fault. See Alarm Codes |
|
1110 |
UINT16 |
Software Fault Flag |
Bit bitmask: 1–32 for software fault. See Alarm Codes |
|
1111 |
UINT16 |
Maintenance Fault Flag |
Bit bitmask: 1–32 for maintenance issue. See Alarm Codes |
|
1112 |
UINT16 |
Reserved |
— |
|
1113 |
UINT16 |
Auxiliary Alarm Flag 1 |
Bit bitmask See Alarm Codes |
|
1114 |
UINT16 |
Auxiliary Alarm Flag 2 |
Bit bitmask See Alarm Codes |
|
1115 |
UINT16 |
Stack Operation Flag |
Bit bitmask for cluster power-on state. |
|
1116 |
UINT16 |
Stack Isolation Switch Status |
0 - Off, 1 - On |
|
1117 |
UINT16 |
BMS Communication Status |
Bitmask (e.g., EMS, PCS, Cluster, etc.) |
|
1118 |
UINT16 |
Battery System Time (Seconds) |
Seconds since system startup |
|
1119 |
UINT16 |
System Self-check Status |
0 - Not passed, 1 - Passed |
|
1120 |
UINT16 |
Relay Closing Command Status |
0 - None, 1 - Executing, 2 - Successful, 3 - Failed |
|
1121 |
UINT16 |
Relay Opening Command Status |
0 - None, 1 - Executing, 2 - Successful, 3 - Failed |
|
1122 |
UINT16 |
Main Positive Relay Status |
0 - Open, 1 - Closed |
|
1123 |
UINT16 |
Main Negative Relay Status |
0 - Open, 1 - Closed |
|
1124 |
UINT16 |
Precharge Relay Status |
0 - Open, 1 - Closed |
|
1125 |
UINT16 |
Fault Count |
Total fault occurrences |
|
1126 |
UINT16 |
First Fault Code |
— |
|
1127 |
UINT16 |
First Fault Cluster No. |
— |
|
1128 |
UINT16 |
First Fault Type |
— |
|
1129 |
UINT16 |
System Operation Time |
Seconds |
|
1130 |
UINT16 |
System Version Code |
Software version ID |
|
1131 |
UINT16 |
Current Mode of Operation |
0 - Standby, 1 - Charging, 2 - Discharging |
|
1132 |
UINT16 |
System Time (Year) |
e.g., 2025 |
|
1133 |
UINT16 |
System Time (Month) |
1–12 |
|
1134 |
UINT16 |
System Time (Day) |
1–31 |
|
1135 |
UINT16 |
System Time (Hour) |
0–23 |
|
1136 |
UINT16 |
System Time (Minute) |
0–59 |
|
1137 |
UINT16 |
System Time (Second) |
0–59 |