Connect Trinity to the computer through a USB-to-serial or RS485 adapter and read its registers in your browser: click "Read register values online" under the model (Chrome or Edge, nothing to install). The tables below list the MODBUS offset, unit, data type and scale of every register shown.
For logging 24/7 into a database, CSV files or Excel, use the Advanced Serial Data Logger (for MODBUS RTU) or Advanced TCP/IP Data Logger (for MODBUS TCP): they poll the complete map of every model on this page and provide continuous Trinity logging and read.
Do you not know the meter address? Scan the device address online
Trinity (EM9400) - MODBUS Mapping
Connection and addressing notes
- Protocol
- Modbus RTU
- Interface
- RS-485
- Default baud rate
- 9600 bps
- Data bits
- 8
- Stop bits
- 1
- Parity
- none
- Function codes
- 03 read holding registers
- Register addressing
- decimal
- Device address
- site selectable per meter
- Oversized read
- a query for more than 254 bytes of data returns an exception
Registers in the map: 175 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). byte order big-endian. data types: dword.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 199 | Vrn | | dword | ×0.01 |
| 201 | Vyn | | dword | |
| 203 | Vbn | | dword | |
| 205 | Avg vpn | | dword | |
| 207 | Vry | | dword | |
| 209 | Vyb | | dword | ×0.01 |
| 211 | Vbr | | dword | |
| 213 | Avg vpp | | dword | |
| 215 | Ir | | dword | |
| 217 | Iy | | dword | |
| 219 | Ib | | dword | |
| 221 | Avg | A | dword | |
| 223 | In | | dword | |
| 225 | Pf R | | dword | |
| 227 | Pf Y | | dword | |
| 229 | Pf B | | dword | |
| 231 | Sys pf | | dword | |
| 233 | Kw R | | dword | |
| 235 | Kw Y | | dword | |
| 237 | Kw B | | dword | |
| 239 | Sys | kW | dword | |
| 241 | Kva R | | dword | |
| 243 | Kva Y | | dword | |
| 245 | Kva B | | dword | |
| 247 | Sys | kVA | dword | |
| 249 | Kvar R | | dword | |
| 251 | Kvar Y | | dword | |
| 253 | Kvar B | | dword | |
| 255 | Sys | kvar | dword | |
| 257 | Sys freq | | dword | |
| 259 | Kwh | | dword | |
| 261 | Kvah | | dword | |
| 263 | Kvarh lg | | dword | |
| 265 | Kvarh ld | | dword | |
| 267 | Total | kvarh | dword | |
| 269 | Voltage R Y angle | | dword | |
| 271 | Voltage R B angle | | dword | |
| 273 | Current R Y angle | | dword | |
| 275 | Current R B angle | | dword | |
| 277 | Voltage unbalance(%) R phase | | dword | |
| 279 | Voltage unbalance(%) Y phase | | dword | |
| 281 | Voltage unbalance(%) B phase | | dword | |
| 283 | Current unbalance(%) R phase | | dword | |
| 285 | Current unbalance(%) Y phase | | dword | |
| 287 | Gurrent unbalance(%) B phase | | dword | |
| 289 | On minute | | dword | |
| 291 | On hour | | dword | |
| 293 | Run minute | | dword | |
| 295 | Run hour | | dword | |
| 297 | Vr thd | | dword | |
This is not the complete map: 50 of 175 registers are listed above. Click "Read register values online" to read any register of your device in the browser, or download the program to log the complete map.
Trinity (Goblin) - MODBUS Measurements
Connection and addressing notes
- Protocol
- Modbus
- Register addressing
- 4xxxx range, 40200 and up
- Data format
- U-Long or Long
- Scaling
- MF multiplication factor
Registers in the map: 86 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). byte order big-endian. data types: dword, integer.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 199 | Vln R | | dword | ×0.01 |
| 201 | Vin Y | | dword | ×0.01 |
| 203 | Vin B | | dword | ×0.01 |
| 205 | Vin avg | | dword | ×0.01 |
| 207 | Vii ry | | dword | ×0.01 |
| 209 | Vii yb | | dword | ×0.01 |
| 211 | Vii br | | dword | ×0.01 |
| 213 | Vii avg | | dword | ×0.01 |
| 215 | Ir | | dword | ×0.01 |
| 217 | Iy | | dword | ×0.01 |
| 219 | Lb | | dword | ×0.01 |
| 221 | Lavg | | dword | ×0.01 |
| 223 | I neutral | | dword | ×0.01 |
| 229 | Hz | | dword | ×0.01 |
| 231 | System pf | | integer | ×0.001 |
| 233 | Pfr | | integer | ×0.001 |
| 235 | Pfy | | integer | ×0.001 |
| 237 | Pfb | | integer | ×0.001 |
| 239 | System | kW | dword | ×0.01 |
| 241 | System | kvar | integer | ×0.01 |
| 243 | System | kVA | dword | ×0.01 |
| 245 | Kwr | | dword | ×0.01 |
| 247 | Kwy | | dword | ×0.01 |
| 249 | Kwb | | dword | ×0.01 |
| 251 | Kvar r | | dword | ×0.01 |
| 253 | Kvar y | | dword | ×0.01 |
| 255 | Kvar b | | dword | ×0.01 |
| 257 | Kva r | | dword | ×0.01 |
| 259 | Kva y | | dword | ×0.01 |
| 261 | Kva b | | dword | ×0.01 |
| 263 | Kw demand | | dword | ×0.01 |
| 265 | Md | kW | dword | ×0.01 |
| 269 | Md | kVA | dword | ×0.01 |
| 275 | Sys | kWh | dword | ×0.01 |
| 277 | Sys | kvarh | dword | ×0.01 |
| 279 | Sys. Kvarh lg | | dword | ×0.01 |
| 281 | Sys. Kvarh ld | | dword | ×0.01 |
| 283 | Sys | kVAh | dword | ×0.01 |
| 285 | 3rd hvr | | dword | ×0.1 |
| 287 | Sth hvr | | dword | ×0.1 |
| 289 | 7th hvr | | dword | ×0.1 |
| 291 | 8th hvr | | dword | ×0.1 |
| 293 | 9th hvr | | dword | ×0.1 |
| 295 | 11th hvr | | dword | ×0.1 |
| 297 | 15th hvr | | dword | ×0.1 |
| 299 | Thd hvr | | dword | ×0.1 |
| 301 | 3rd hlr | | dword | ×0.1 |
| 303 | Sth hlr | | dword | ×0.1 |
| 305 | 7th hlr | | dword | ×0.1 |
| 307 | 8th hlr | | dword | ×0.1 |
This is not the complete map: 50 of 86 registers are listed above. Click "Read register values online" to read any register of your device in the browser, or download the program to log the complete map.
Trinity (Infinity) - MODBUS Registers
Connection and addressing notes
- Meter variants
- dual-source and normal Infinity meters
- Register addressing
- 3030-3070
- Scaling
- MF multiplication factor column
- Oversized read
- a query that reads more than 32 bytes of data returns an exception
Registers in the map: 12. function 3 (holding registers). byte order big-endian. data types: dword.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 3029 | Eb | kWh | dword | ×0.01 |
| 3031 | Dg | kWh | dword | ×0.01 |
| 3033 | Eb time hours | | dword | |
| 3035 | Eb time minutes | | dword | |
| 3037 | Dg time hours | | dword | |
| 3039 | Dg time minutes | | dword | |
| 3059 | Eb | kVAh | dword | ×0.01 |
| 3061 | Dg | kVAh | dword | ×0.01 |
| 3063 | Eb time hour | | dword | |
| 3065 | Eb time minute | | dword | |
| 3067 | Dg time hour | | dword | |
| 3069 | Dg time minute | | dword | |
Trinity (MFM X100) - MODBUS Registers
Registers in the map: 21. function 3 (holding registers). byte order big-endian. data types: integer.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 2999 | 3 phase. | kVA | integer | ×0.01 |
| 3001 | 3 phase. | kW | integer | ×0.01 |
| 3003 | 3 phase. KVAr | | integer | ×0.01 |
| 3005 | 3 phase. | PF | integer | ×0.001 |
| 3007 | 3 phase. Avg. VLL | | integer | ×0.01 |
| 3009 | 3 phase. Avg. VLN | | integer | ×0.01 |
| 3011 | 3 phase. Avg. | A | integer | ×0.01 |
| 3029 | R phase. | KWh | integer | ×0.01 |
| 3031 | R phase. | kVAh | integer | ×0.01 |
| 3033 | R phase. KVARh | | integer | ×0.01 |
| 3035 | R phase. | Hz | integer | ×0.001 |
| 3037 | R phase. Vry | | integer | ×0.01 |
| 3039 | R phase. Vr | | integer | ×0.01 |
| 3041 | R phase. Ir | | integer | ×0.01 |
| 3059 | Y phase. Vr-THD | | integer | ×0.01 |
| 3061 | Y phase. Ir-THD | | integer | ×0.01 |
| 3063 | Y phase. Vy-THD | | integer | ×0.01 |
| 3065 | Y phase. Iy-THD | | integer | ×0.001 |
| 3067 | Y phase. Vyb | | integer | ×0.01 |
| 3069 | Y phase. Vy | | integer | ×0.01 |
| 3071 | Y phase. Iy | | integer | ×0.01 |
Trinity (NF29) - MODBUS Registers
Connection and addressing notes
- Protocol
- Modbus
- Interface
- RS-485
- Default baud rate
- 9600 bps
- Data bits
- 8
- Stop bits
- 1
- Parity
- none
- Device address range
- 1-255
- Register addressing
- decimal
- Data format
- unsigned long
- Oversized read
- more than 32 bytes in one query returns exception code 03
- Invalid start address
- returns exception code 03
Registers in the map: 31. function 3 (holding registers). byte order big-endian. data types: dword.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 2999 | 3-phase | KVa | dword | ×0.01 |
| 3001 | 3-phase KW | kWh | dword | ×0.01 |
| 3003 | 3-phase KVA | kvar | dword | ×0.01 |
| 3005 | 3-phase Power factor | | dword | ×0.001 |
| 3007 | 3-phase Average VLL | V | dword | ×0.01 |
| 3009 | 3-phase Average VLN | V | dword | ×0.01 |
| 3011 | 3-phase Average | A | dword | ×0.01 |
| 3029 | R-phase | kWh | dword | ×0.01 |
| 3031 | R-phase KVAh | kVA | dword | ×0.01 |
| 3033 | R-phase KVARh | kvarh | dword | ×0.01 |
| 3035 | R-phase Frequency | Hz | dword | ×0.01 |
| 3037 | R-phase Vry | V | dword | ×0.01 |
| 3039 | R-phase Vr | V | dword | ×0.01 |
| 3041 | R-phase Ir | A | dword | ×0.01 |
| 3043 | R-phase Power factor | | dword | ×0.001 |
| 3119 | R-phase | kVA | dword | ×0.01 |
| 3125 | R-phase | kW | dword | ×0.01 |
| 3131 | R-phase | kvar | dword | ×0.01 |
| 3067 | Y-phase Vyb | V | dword | ×0.01 |
| 3069 | Y-phase Vy | V | dword | ×0.01 |
| 3071 | Y-phase Iy | A | dword | ×0.01 |
| 3073 | Y-phase Power factor | | dword | ×0.001 |
| 3121 | Y-phase | kVA | dword | ×0.01 |
| 3127 | Y-phase | kW | dword | ×0.01 |
| 3133 | Y-phase | kvar | dword | ×0.01 |
| 3097 | B-phase Vbr | V | dword | ×0.01 |
| 3099 | B-phase Vb | V | dword | ×0.01 |
| 3101 | B-phase Ib | A | dword | ×0.01 |
| 3103 | B-phase Power factor | | dword | ×0.001 |
| 3123 | B-phase | kVA | dword | ×0.01 |
| 3129 | B-phase | kW | dword | ×0.01 |
Related MODBUS registers maps
MODBUS Maps Index
Tense (TPM 05)
Taiye Electric (TAC1100)
Trinity (PowerPro)
Tyco Electronics (Integra 1630)
Note: Products and companies mentioned here are used only for definition and identification purposes and can be trademarks and/or registered trademarks of the respective companies.
