Modbus/RTU Protocol for IAMMETER Energy Meter (RS485)
Original link : IAMMETER Series Three-Phase Meter Modbus/RTU Protocol
Register Map
| No. | Definition | Register Address | R/W | Data Type and Calculation Description |
|---|---|---|---|---|
| 1 | Voltage of Phase A | 0048H | Read | Unsigned, Value = DATA/100, Unit: V |
| 2 | Current of Phase A | 0049H | Read | Unsigned, Value = DATA/100, Unit: A |
| 3 | Active Power of Phase A | 004AH | Read | Unsigned, Value = DATA, Unit: W |
| 4 | Active Energy (Forward) | 004BH 004CH | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 5 | Power Factor of Phase A | 004DH | Read | Unsigned, Value = DATA/1000 |
| 6 | Active Energy (Reverse) | 004EH 004FH | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 7 | Power Direction Indicator | 0050H | Read | High byte 0 for forward, 1 for reverse |
| 8 | Voltage of Phase B | 0051H | Read | Unsigned, Value = DATA/100, Unit: V |
| 9 | Current of Phase B | 0052H | Read | Unsigned, Value = DATA/100, Unit: A |
| 10 | Active Power of Phase B | 0053H | Read | Unsigned, Value = DATA, Unit: W |
| 11 | Active Energy (Forward) | 0054H 0055H | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 12 | Power Factor of Phase B | 0056H | Read | Unsigned, Value = DATA/1000 |
| 13 | Active Energy (Reverse) | 0057H 0058H | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 14 | Power Direction Indicator | 0059H | Read | High byte 0 for forward, 1 for reverse |
| 15 | Voltage of Phase C | 005AH | Read | Unsigned, Value = DATA/100, Unit: V |
| 16 | Current of Phase C | 005BH | Read | Unsigned, Value = DATA/100, Unit: A |
| 17 | Active Power of Phase C | 005CH | Read | Unsigned, Value = DATA, Unit: W |
| 18 | Active Energy (Forward) | 005DH 005EH | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 19 | Power Factor of Phase C | 005FH | Read | Unsigned, Value = DATA/1000 |
| 20 | Active Energy (Reverse) | 0060H 0061H | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 21 | Power Direction Indicator | 0062H | Read | High byte 0 for forward, 1 for reverse |
| 23 | Total Active Energy (Forward) | 0063H 0064H | Read | 4 bytes, Unsigned, Value = DATA/800, Unit: kWh |
| 24 | Frequency | 0065H | Read | Unsigned, Value = DATA/100, Unit: Hz |
| 25 | Total Active Energy (Reverse) | 0066H 0067H | Read | Unsigned, Value = DATA/800, Unit: kWh |
| 26 | Active Energy of Phase A (Forward) | 0068H 0069H | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 27 | Active Energy of Phase A (Reverse) | 006AH 006BH | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 28 | Active Energy of Phase B (Forward) | 006CH 006DH | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 29 | Active Energy of Phase B (Reverse) | 006EH 006FH | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 30 | Active Energy of Phase C (Forward) | 0070H 0071H | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 31 | Active Energy of Phase C (Reverse) | 0072H 0073H | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 32 | Total Active Energy (Forward) | 0074H 0075H | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 33 | Total Active Energy (Reverse) | 0076H 0077H | Read | Unsigned, Value = DATA/1000, Unit: kWh |
| 34 | Total Power | 0078H 0079H | Read | Signed, Value = DATA, Unit: W |
| 35 | Active Power of Phase A | 007AH 007BH | Read | Signed, Value = DATA, Unit: W |
| 36 | Active Power of Phase B | 007CH 007DH | Read | Signed, Value = DATA, Unit: W |
| 37 | Active Power of Phase C | 007EH 007FH | Read | Signed, Value = DATA, Unit: W |
| 38 | Reactive Power of Phase A | 0080H 0081H | Read | Signed, Value = DATA, Unit: var |
| 39 | Reactive Power of Phase B | 0082H 0083H | Read | Signed, Value = DATA, Unit: var |
| 40 | Reactive Power of Phase C | 0084H 0085H | Read | Signed, Value = DATA, Unit: var |
| 41 | Forward Reactive Energy (Inductive) of Phase A | 0086H 0087H | Read | Unsigned, Value = DATA/1000, Unit: kvarh |
| 42 | Reverse Reactive Energy (Capacitive) of Phase A | 0088H 0089H | Read | Unsigned, Value = DATA/1000, Unit: kvarh |
| 43 | Forward Reactive Energy (Inductive) of Phase B | 008AH 008BH | Read | Unsigned, Value = DATA/1000, Unit: kvarh |
| 44 | Reverse Reactive Energy (Capacitive) of Phase B | 008CH 008DH | Read | Unsigned, Value = DATA/1000, Unit: kvarh |
| 45 | Forward Reactive Energy (Inductive) of Phase C | 008EH 008FH | Read | Unsigned, Value = DATA/1000, Unit: kvarh |
| 46 | Reverse Reactive Energy (Capacitive) of Phase C | 0090H 0091H | Read | Unsigned, Value = DATA/1000, Unit: kvarh |