Anker Micro inverter (pv)
The Anker Micro inverter is a panel-level, grid-tied PV inverter designed for residential and small commercial solar installations. This ModbusCloud template communicates over Modbus RTU via RS485 and reads two core registers: instantaneous AC output power and cumulative energy production. With these two data points in your portal, you can track real-time generation output and long-run yield from each Anker Micro inverter unit, giving installers and building owners a clear view of solar performance over time.
- Protocol
- Modbus RTU
- Connection
- RS485
- Registers
- 2, read only
- Brand
- Anker
- Compatible models
- Micro inverter
- Last updated
Registers (2)
2 read, 0 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| power | W | Read | |||
| energy | Wh | Read |
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Use cases
- Monitor real-time AC output power to verify the Anker Micro inverter is producing at expected levels during daylight hours.
- Track cumulative energy production over weeks and months to identify gradual yield degradation.
- Alert on power readings that drop to zero during daylight to detect inverter faults or communication loss quickly.
- Compare daily energy totals across multiple Anker Micro inverter units to spot underperforming panels on a site.
- Report monthly energy generation figures from the portal for tenant billing or feed-in tariff documentation.
Installation
Enable Modbus RTU communication on the Anker Micro inverter using the manufacturer configuration tool or local interface, and note the assigned slave unit ID.
Wire the RS485 A and B terminals of the inverter to the RS485 port of the ModbusCloud Gateway, observing correct polarity, and add a 120-ohm termination resistor at each end of the bus if the inverter is the last device.
In the ModbusCloud portal, add the Gateway, create a new device, select the Anker Micro inverter (pv) template, and enter the slave unit ID assigned to the inverter.
Verify the connection by checking that the power and energy registers return live values in the portal data view; a non-zero power reading during daylight confirms a successful Modbus RTU link.
Things to watch for
The portal shows zero for power even though the inverter is running. Why?
Check that the RS485 A and B wires are not swapped. Try reversing the polarity on the Gateway RS485 terminals. Also confirm the slave unit ID in the portal matches the ID configured on the inverter. A mismatch causes all registers to return no data.
Energy values are not incrementing over time. What should I check?
The energy register at address 63 is a uint32 cumulative counter. If the value is frozen, first confirm the power register is reading correctly, as a broken Modbus link would affect both. Also check whether the inverter resets its energy counter on a firmware update or power cycle.
Register reads fail intermittently on a bus with several devices. What is the cause?
Intermittent failures on a shared RS485 bus are usually caused by missing bus termination or cable lengths that exceed the rated run. Add 120-ohm termination resistors at both ends of the RS485 cable. Keep total cable length within the RS485 specification for the configured baud rate.
How should I interpret the raw uint32 values when no unit is shown?
The power and energy registers carry no explicit unit in this template. Cross-reference the raw value against a known reading from the Anker app or the local inverter display to determine the scaling factor in use. Common patterns are 1 count per watt for power and 1 count per watt-hour for energy, but verify against your specific firmware version.
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