Growatt SPH - Inverter - smartmeter communication

• A cable connection must be established for proper communication between the meter and the inverter. Its correct connection can be verified by displaying a telephone icon on the meter display. This applies to EASTRON and CHINT smartmeters.
• An error message on the inverter display "Error 401" indicates a problem in the communication between the meter and the inverter.
• Wireless connection between smartmeter and SPH inverter is not possible.