Finder 7E.78 / 7E.86
Three-phase MID energy meter that measures power, energy per phase and per tariff, and grid quality.
The Finder 7E.78 and 7E.86 are MID-certified three-phase energy meters for DIN rail that measure voltage, current, power and energy per phase, directly up to 80 A or through current transformers. This Modbus RTU template reads all power values, energy counters per tariff and alarm bits, and lets you set the Modbus address and control the partial counters from ModbusCloud.
- Protocol
- Modbus RTU
- Connection
- RS485, 19200 baud
- Registers
- 233, read and write
- Brand
- Finder
- Key readings
- Voltage per phase · Current per phase · Active power · Power factor · Frequency · Imported energy · Exported energy · Tariff counters
- Available commands
- Modbus address · Communication speed · Partial counter start and stop
- Compatible models
- 7E.78.8.400.0212 · 7E.86.8.400.0212 · Finder 7E.78.8.400.0412 · Finder 7E.86.8.400.0412
- Last updated
Registers (233)
230 read, 6 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| Phase 1 Voltage | V | Read | |||
| Phase 2 Voltage | V | Read | |||
| Phase 3 Voltage | V | Read | |||
| L1-L2 Voltage | V | Read | |||
| L2-L3 Voltage | V | Read | |||
| L3-L1 Voltage | V | Read | |||
| System Voltage | V | Read | |||
| Phase 1 Current | A | Read | |||
| Phase 2 Current | A | Read | |||
| Phase 3 Current | A | Read | |||
| Neutral Current | A | Read | |||
| System Current | A | Read | |||
| Phase 1 Power Factor | Read | ||||
| Phase 2 Power Factor | Read | ||||
| Phase 3 Power Factor | Read | ||||
| System Power Factor | Read | ||||
| Phase 1 Active Power | W | Read | |||
| Phase 2 Active Power | W | Read | |||
| Phase 3 Active Power | W | Read | |||
| System Active Power | W | Read | |||
| Phase 1 Apparent Power | VA | Read | |||
| Phase 2 Apparent Power | VA | Read | |||
| Phase 3 Apparent Power | VA | Read | |||
| System Apparent Power | VA | Read | |||
| Phase 1 Reactive Power | var | Read | |||
| Phase 2 Reactive Power | var | Read | |||
| Phase 3 Reactive Power | var | Read | |||
| System Reactive Power | var | Read | |||
| Frequency | Hz | Read | |||
| Phase Sequence | Read | ||||
| Phase 1 Import Active Energy | Wh | Read | |||
| Phase 2 Import Active Energy | Wh | Read | |||
| Phase 3 Import Active Energy | Wh | Read | |||
| System Import Active Energy | Wh | Read | |||
| Phase 1 Export Active Energy | Wh | Read | |||
| Phase 2 Export Active Energy | Wh | Read | |||
| Phase 3 Export Active Energy | Wh | Read | |||
| System Export Active Energy | Wh | Read | |||
| Phase 1 Import Lag Apparent Energy | VAh | Read | |||
| Phase 2 Import Lag Apparent Energy | VAh | Read | |||
| Phase 3 Import Lag Apparent Energy | VAh | Read | |||
| System Import Lag Apparent Energy | VAh | Read | |||
| Phase 1 Export Lag Apparent Energy | VAh | Read | |||
| Phase 2 Export Lag Apparent Energy | VAh | Read | |||
| Phase 3 Export Lag Apparent Energy | VAh | Read | |||
| System Export Lag Apparent Energy | VAh | Read | |||
| Phase 1 Import Lead Apparent Energy | VAh | Read | |||
| Phase 2 Import Lead Apparent Energy | VAh | Read | |||
| Phase 3 Import Lead Apparent Energy | VAh | Read | |||
| System Import Lead Apparent Energy | VAh | Read | |||
| Phase 1 Export Lead Apparent Energy | VAh | Read | |||
| Phase 2 Export Lead Apparent Energy | VAh | Read | |||
| Phase 3 Export Lead Apparent Energy | VAh | Read | |||
| System Export Lead Apparent Energy | VAh | Read | |||
| Phase 1 Import Lag Reactive Energy | varh | Read | |||
| Phase 2 Import Lag Reactive Energy | varh | Read | |||
| Phase 3 Import Lag Reactive Energy | varh | Read | |||
| System Import Lag Reactive Energy | varh | Read | |||
| Phase 1 Export Lag Reactive Energy | varh | Read | |||
| Phase 2 Export Lag Reactive Energy | varh | Read | |||
| Phase 3 Export Lag Reactive Energy | varh | Read | |||
| System Export Lag Reactive Energy | varh | Read | |||
| Phase 1 Import Lead Reactive Energy | varh | Read | |||
| Phase 2 Import Lead Reactive Energy | varh | Read | |||
| Phase 3 Import Lead Reactive Energy | varh | Read | |||
| System Import Lead Reactive Energy | varh | Read | |||
| Phase 1 Export Lead Reactive Energy | varh | Read | |||
| Phase 2 Export Lead Reactive Energy | varh | Read | |||
| Phase 3 Export Lead Reactive Energy | varh | Read | |||
| System Export Lead Reactive Energy | varh | Read | |||
| Phase 1 Import Active Energy T1 | Wh | Read | |||
| Phase 2 Import Active Energy T1 | Wh | Read | |||
| Phase 3 Import Active Energy T1 | Wh | Read | |||
| System Import Active Energy T1 | Wh | Read | |||
| Phase 1 Export Active Energy T1 | Wh | Read | |||
| Phase 2 Export Active Energy T1 | Wh | Read | |||
| Phase 3 Export Active Energy T1 | Wh | Read | |||
| System Export Active Energy T1 | Wh | Read | |||
| Phase 1 Import Lag Apparent Energy T1 | VAh | Read | |||
| Phase 2 Import Lag Apparent Energy T1 | VAh | Read | |||
| Phase 3 Import Lag Apparent Energy T1 | VAh | Read | |||
| System Import Lag Apparent Energy T1 | VAh | Read | |||
| Phase 1 Export Lag Apparent Energy T1 | VAh | Read | |||
| Phase 2 Export Lag Apparent Energy T1 | VAh | Read | |||
| Phase 3 Export Lag Apparent Energy T1 | VAh | Read | |||
| System Export Lag Apparent Energy T1 | VAh | Read | |||
| Phase 1 Import Lead Apparent Energy T1 | VAh | Read | |||
| Phase 2 Import Lead Apparent Energy T1 | VAh | Read | |||
| Phase 3 Import Lead Apparent Energy T1 | VAh | Read | |||
| System Import Lead Apparent Energy T1 | VAh | Read | |||
| Phase 1 Export Lead Apparent Energy T1 | VAh | Read | |||
| Phase 2 Export Lead Apparent Energy T1 | VAh | Read | |||
| Phase 3 Export Lead Apparent Energy T1 | VAh | Read | |||
| System Export Lead Apparent Energy T1 | VAh | Read | |||
| Phase 1 Import Lag Reactive Energy T1 | varh | Read | |||
| Phase 2 Import Lag Reactive Energy T1 | varh | Read | |||
| Phase 3 Import Lag Reactive Energy T1 | varh | Read | |||
| System Import Lag Reactive Energy T1 | varh | Read | |||
| Phase 1 Export Lag Reactive Energy T1 | varh | Read | |||
| Phase 2 Export Lag Reactive Energy T1 | varh | Read | |||
| Phase 3 Export Lag Reactive Energy T1 | varh | Read | |||
| System Export Lag Reactive Energy T1 | varh | Read | |||
| Phase 1 Import Lead Reactive Energy T1 | varh | Read | |||
| Phase 2 Import Lead Reactive Energy T1 | varh | Read | |||
| Phase 3 Import Lead Reactive Energy T1 | varh | Read | |||
| System Import Lead Reactive Energy T1 | varh | Read | |||
| Phase 1 Export Lead Reactive Energy T1 | varh | Read | |||
| Phase 2 Export Lead Reactive Energy T1 | varh | Read | |||
| Phase 3 Export Lead Reactive Energy T1 | varh | Read | |||
| System Export Lead Reactive Energy T1 | varh | Read | |||
| Phase 1 Import Active Energy T2 | Wh | Read | |||
| Phase 2 Import Active Energy T2 | Wh | Read | |||
| Phase 3 Import Active Energy T2 | Wh | Read | |||
| System Import Active Energy T2 | Wh | Read | |||
| Phase 1 Export Active Energy T2 | Wh | Read | |||
| Phase 2 Export Active Energy T2 | Wh | Read | |||
| Phase 3 Export Active Energy T2 | Wh | Read | |||
| System Export Active Energy T2 | Wh | Read | |||
| Phase 1 Import Lag Apparent Energy T2 | VAh | Read | |||
| Phase 2 Import Lag Apparent Energy T2 | VAh | Read | |||
| Phase 3 Import Lag Apparent Energy T2 | VAh | Read | |||
| System Import Lag Apparent Energy T2 | VAh | Read | |||
| Phase 1 Export Lag Apparent Energy T2 | VAh | Read | |||
| Phase 2 Export Lag Apparent Energy T2 | VAh | Read | |||
| Phase 3 Export Lag Apparent Energy T2 | VAh | Read | |||
| System Export Lag Apparent Energy T2 | VAh | Read | |||
| Phase 1 Import Lead Apparent Energy T2 | VAh | Read | |||
| Phase 2 Import Lead Apparent Energy T2 | VAh | Read | |||
| Phase 3 Import Lead Apparent Energy T2 | VAh | Read | |||
| System Import Lead Apparent Energy T2 | VAh | Read | |||
| Phase 1 Export Lead Apparent Energy T2 | VAh | Read | |||
| Phase 2 Export Lead Apparent Energy T2 | VAh | Read | |||
| Phase 3 Export Lead Apparent Energy T2 | VAh | Read | |||
| System Export Lead Apparent Energy T2 | VAh | Read | |||
| Phase 1 Import Lag Reactive Energy T2 | varh | Read | |||
| Phase 2 Import Lag Reactive Energy T2 | varh | Read | |||
| Phase 3 Import Lag Reactive Energy T2 | varh | Read | |||
| System Import Lag Reactive Energy T2 | varh | Read | |||
| Phase 1 Export Lag Reactive Energy T2 | varh | Read | |||
| Phase 2 Export Lag Reactive Energy T2 | varh | Read | |||
| Phase 3 Export Lag Reactive Energy T2 | varh | Read | |||
| System Export Lag Reactive Energy T2 | varh | Read | |||
| Phase 1 Import Lead Reactive Energy T2 | varh | Read | |||
| Phase 2 Import Lead Reactive Energy T2 | varh | Read | |||
| Phase 3 Import Lead Reactive Energy T2 | varh | Read | |||
| System Import Lead Reactive Energy T2 | varh | Read | |||
| Phase 1 Export Lead Reactive Energy T2 | varh | Read | |||
| Phase 2 Export Lead Reactive Energy T2 | varh | Read | |||
| Phase 3 Export Lead Reactive Energy T2 | varh | Read | |||
| System Export Lead Reactive Energy T2 | varh | Read | |||
| Partial Import Active Energy | Wh | Read | |||
| Partial Export Active Energy | Wh | Read | |||
| Partial Import Lag Apparent Energy | VAh | Read | |||
| Partial Export Lag Apparent Energy | VAh | Read | |||
| Partial Import Lead Apparent Energy | VAh | Read | |||
| Partial Export Lead Apparent Energy | VAh | Read | |||
| Partial Import Lag Reactive Energy | varh | Read | |||
| Partial Export Lag Reactive Energy | varh | Read | |||
| Partial Import Lead Reactive Energy | varh | Read | |||
| Partial Export Lead Reactive Energy | varh | Read | |||
| Balance Active Energy | Wh | Read | |||
| Balance Lag Apparent Energy | VAh | Read | |||
| Balance Lead Apparent Energy | VAh | Read | |||
| Balance Lag Reactive Energy | varh | Read | |||
| Balance Lead Reactive Energy | varh | Read | |||
| Phase 1 Voltage (Integer) | V | Read | |||
| Phase 2 Voltage (Integer) | V | Read | |||
| Phase 3 Voltage (Integer) | V | Read | |||
| L1-L2 Voltage (Integer) | V | Read | |||
| L2-L3 Voltage (Integer) | V | Read | |||
| L3-L1 Voltage (Integer) | V | Read | |||
| System Voltage (Integer) | V | Read | |||
| Phase 1 Current (Integer) | A | Read | |||
| Phase 2 Current (Integer) | A | Read | |||
| Phase 3 Current (Integer) | A | Read | |||
| Neutral Current (Integer) | A | Read | |||
| System Current (Integer) | A | Read | |||
| Phase 1 Power Factor (Integer) | Read | ||||
| Phase 2 Power Factor (Integer) | Read | ||||
| Phase 3 Power Factor (Integer) | Read | ||||
| System Power Factor (Integer) | Read | ||||
| Frequency (Integer) | Hz | Read | |||
| Phase Sequence Code | Read | ||||
| Counter Serial Number | Read | ||||
| Counter Model | Read | ||||
| Counter Type | Read | ||||
| Counter Firmware Release 1 | Read | ||||
| Counter Hardware Version | Read | ||||
| Tariff In Use | Read | ||||
| Primary Secondary Value | Read | ||||
| Error Code | Read | ||||
| CT Ratio | Read | ||||
| FSA Value | Read | ||||
| Wiring Mode | Read | ||||
| Partial Counter Status | Read | ||||
| Module Serial Number | Read | ||||
| Signed Value Representation | Read | ||||
| Module Firmware Release | Read | ||||
| Module Hardware Version | Read | ||||
| RegSet In Use | Read | ||||
| Counter Firmware Release 2 | Read | ||||
| Modbus Address | Read and write | ||||
| Modbus Mode | Read and write | ||||
| Communication Speed | Read and write | ||||
| Reset Energy Counters | Write | ||||
| Partial Counter Operation | Write | ||||
| RegSet Switching | Write | ||||
| Frequency Out Of Range Alarm | Read | ||||
| System Current High Alarm | Read | ||||
| Phase 1 Current High Alarm | Read | ||||
| Phase 2 Current High Alarm | Read | ||||
| Phase 3 Current High Alarm | Read | ||||
| Neutral Current High Alarm | Read | ||||
| System Current Low Alarm | Read | ||||
| Phase 1 Current Low Alarm | Read | ||||
| Phase 2 Current Low Alarm | Read | ||||
| Phase 3 Current Low Alarm | Read | ||||
| Neutral Current Low Alarm | Read | ||||
| L1-L2 Voltage High Alarm | Read | ||||
| L2-L3 Voltage High Alarm | Read | ||||
| L3-L1 Voltage High Alarm | Read | ||||
| L1-L2 Voltage Low Alarm | Read | ||||
| L2-L3 Voltage Low Alarm | Read | ||||
| L3-L1 Voltage Low Alarm | Read | ||||
| IR Communication Error | Read | ||||
| System Voltage High Alarm | Read | ||||
| Phase 1 Voltage High Alarm | Read | ||||
| Phase 2 Voltage High Alarm | Read | ||||
| Phase 3 Voltage High Alarm | Read | ||||
| System Voltage Low Alarm | Read | ||||
| Phase 1 Voltage Low Alarm | Read | ||||
| Phase 2 Voltage Low Alarm | Read | ||||
| Phase 3 Voltage Low Alarm | Read |
Loading registers…
Send your device list
If a device is not in the library yet, we build the template for free as soon as we have the register data.
Use cases
- Show power per phase and total consumption of a building or sub-distribution on a dashboard.
- Compare day and night consumption with the tariff 1 and tariff 2 counters in the history.
- Get an alert when a voltage or current alarm bit goes to 1, so you see a missing phase or overload early.
- Track imported and exported energy of a PV installation with the balance counter.
- Start a partial counter remotely to measure the consumption of one job or period.
Installation
Connect the RS485 terminals of the meter to the RS485 port of the ModbusCloud Gateway, A to A and B to B, with a 120 ohm terminator at the end of the line.
Check on the meter display that the Modbus mode is RTU (8N1), the speed 19200 bps and the address unique on the bus.
In ModbusCloud, add a Modbus device with protocol RTU, the address of the meter, 19200 baud and 8N1, and import this template.
Check that the phase voltages show around 230 V and that Counter Model matches your meter.
Things to watch for
The meter does not answer. What should I check?
Check address, 19200 baud and 8N1 on the meter display; the meter can also be set to ASCII mode (7E2), which the gateway does not use. Swap A and B if nothing comes back and terminate the line with 120 ohm.
Why do the integer current or power factor values show large numbers when they should be negative?
By default the meter codes negative integers with a sign bit instead of two's complement. Read Signed Value Representation; if it is 0, use the float values from the same table, which carry the sign correctly.
The 7E.86 shows currents that are far too low. Why?
The 7E.86 measures through current transformers. Set the CT ratio on the meter; the template reads it as CT Ratio. Primary Secondary Value shows whether the values are primary or secondary.
Can I write registers on this meter from ModbusCloud?
Yes: Modbus address, mode and speed, and partial counter commands. Writing is off per gateway by default; request it for the gateway in the portal. Change the address in ModbusCloud as well after writing it, otherwise the meter stops answering. Energy counters cannot be reset on MID meters.
More Finder templates
Want to see how it works?
