Peacefair Pzem051 Manual Patched <2027>
| Parameter | Register Address (Hex) | Function Code | Data Type | Scaling Factor | Patched Correction | | :--- | :--- | :--- | :--- | :--- | :--- | | Voltage | 0x0000 | 0x04 | Unsigned short | 0.1 V | Correct | | Current | 0x0001 | 0x04 | Unsigned short | 0.01 A | Correct | | Power | 0x0002 | 0x04 | Unsigned short | 0.1 W | Was incorrectly listed as 0x0003 | | Energy (High Word) | 0x0004 | 0x04 | Unsigned long | 1 Wh | Original manual swapped high/low | | Energy (Low Word) | 0x0005 | 0x04 | Unsigned long | 1 Wh | Original manual swapped high/low | | Device Address | 0x07D0 | 0x03/0x06 | Unsigned char | 1 | Original listed as read-only; it is writable |
If you are using this with or ESPHome , the PZEM-051 (patched) is excellent because it is less prone to disconnection loops. peacefair pzem051 manual patched
When using the 100A version, the shunt must be connected in series with the negative line of the load. Operating Instructions | Parameter | Register Address (Hex) | Function
To confirm you have a unit with modified firmware: peacefair pzem051 manual patched