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DeveloperDIY / solis-s6-home-assistant

ESPHome script + wiring diagram for Solis S6 custom built dongle and Home Assistant integration.
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Ground ? #1

Open jjvandenberg opened 4 months ago

jjvandenberg commented 4 months ago

How does the ESP get ground connection since ground from the solis plug is not connected ? RS485 ground is NOT connected to logic ground on the Rs485 to TTL converter board. And without TX connected, how is the ESP supposed to send a MODBUS command to the inverter ?

grumpysi commented 1 month ago

So sorry, I've only just noticed this issue. I must have notification disabled. The ground should go from Pin 2 on the Solis connector through to ground on the ESP8266. My setup is only for reading information so the TX is not needed. I do not sends any commands to the inverter. Hope that helps.

grumpysi commented 1 month ago

Looks like I missed the green wire that bridges the ground on the RS485 board. See photo below (sorry). :o(

IMG_8306