Carlo Gavazzi EM24 Energy Meter
| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| Carlo Gavazzi EM24 | ✅ | ✅ |
The availability of ethernet and rs485 depends on the exact subtype of EM24 you use.
The SmartgridOne Controller and the device communicate via RS485 or Ethernet.
For correct ethernet wiring: Follow the .
| Device | SmartgridOne Controller model OM1 | SmartgridOne Controller model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| Terminal 41 / A- | RS485 A | RS485_POS | RS485 A | TX+ |
| Terminal 42 / B+ | RS485 B | RS485_NEG | RS485 B | TX- |
| Terminal 43 / GND | RS GND | GND | Not available | G |
Check that the Carlo Gavazzi meter is set to read both import and export power. An unsuitable mode may lead to:
You can set this in the ‘MEASurE’ configuration menu on the energy meter. This should be set to ‘b’.
This setting may not be present on MID certified models (model numbers ending in PFA and PFB).
Set the Modbus address through the power meter's “Address” configuration menu.