Fineco - EM115-MOD
Monitors single-phase energy consumption via current transformer.
Template for the Fineco EM115-MOD single-phase energy meter with current transformer. Reads voltage, current, power, frequency, power factor, and import/export energy values over Modbus RTU. Also supports clearing accumulated energy data via a write register.
- Protocol
- Modbus RTU
- Connection
- RS485, 9600 baud
- Registers
- 14, read and write
- Brand
- Fineco
- Key readings
- Voltage · Frequency · Current · Active/Apparent/Reactive Power · Power Factor · Import/Export Active & Reactive Energy
- Available commands
- Clear Energy
- Compatible models
- EM115-MOD
- Last updated
Registers (14)
13 read, 1 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| 1_Voltage | V | Read | |||
| 9_Import_Reactive_Energy | varh | Read | |||
| 10_Reserve(default 0) | Read | ||||
| 11_Export_Active_Energy | kWh | Read | |||
| 12_Export_Reactive_Energy | varh | Read | |||
| 13_Total_Active_Energy | kWh | Read | |||
| 2_Frequency | Hz | Read | |||
| 3_Current | A | Read | |||
| 4_Active_Power | W | Read | |||
| 5_Apparent_Power | va | Read | |||
| 6_Reactive_Power | var | Read | |||
| 7_Power_Factor | Read | ||||
| 8_Import_Active_Energy | kWh | Read | |||
| Clear_Energy | Write |
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Use cases
- Monitor real-time voltage, current, and power consumption of a single-phase circuit on a remote dashboard.
- Track cumulative import and export active energy to verify tenant billing or solar self-consumption.
- Create an alert when power factor drops below a defined threshold to detect capacitive or inductive load issues.
- Reset accumulated energy counters remotely at the start of a new billing period using the clear energy register.
- Log historical energy data for energy audits or performance reporting in commercial buildings.
Installation
Wire the RS-485 A and B terminals of the Fineco EM115-MOD to the corresponding terminals on your ModbusCloud Gateway, observing correct polarity.
Install and connect the current transformer around the phase conductor according to the EM115-MOD installation manual, ensuring the CT ratio matches the meter configuration.
Set the Modbus slave address on the EM115-MOD using the front panel buttons, and verify the baud rate is set to 9600 (factory default).
Power on the gateway and log in to the ModbusCloud platform, then assign the Fineco EM115-MOD template to the corresponding Modbus address.
Verify that live readings such as voltage, current, and power appear correctly on the dashboard before closing the distribution panel.
Things to watch for
I see zero values for current and power but voltage reads correctly. What is wrong?
This usually indicates a problem with the current transformer installation. Verify that the CT is properly clamped around the phase conductor and that the CT secondary wiring is connected to the correct terminals on the EM115-MOD. Also check that the CT ratio configured in the meter matches the physical CT.
My readings appear as very large or nonsensical numbers. What could cause this?
The EM115-MOD uses float32 (IEEE 754) registers spanning two consecutive Modbus addresses. If the register byte order or word order is mismatched, values will be decoded incorrectly. The template handles this automatically, but if you have modified register settings, verify they match the defaults.
Can I connect multiple EM115-MOD meters to a single gateway?
Yes. Each meter must have a unique Modbus slave address on the RS-485 bus. Use the front panel of each EM115-MOD to assign a different address. Then add a separate template instance in ModbusCloud for each address.
What baud rate should I use?
The default baud rate for the EM115-MOD is 9600 with 8 data bits, no parity, and 1 stop bit (8N1). Ensure the ModbusCloud gateway serial port is configured to match these settings exactly.
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