{"id":479,"date":"2025-09-18T11:54:07","date_gmt":"2025-09-18T11:54:07","guid":{"rendered":"https:\/\/docs.qilowatt.eu\/docs\/solis-s6\/"},"modified":"2026-07-03T03:22:48","modified_gmt":"2026-07-03T03:22:48","password":"","slug":"solis-s6","status":"publish","type":"docs","link":"https:\/\/docs.qilowatt.eu\/en\/docs\/solis-s6\/","title":{"rendered":"Solis S6"},"content":{"rendered":"\n

Introduction<\/h2>\n\n
Solis S6 inverters can be connected to the Qilowatt system via Modbus communication. This guide explains the necessary preparations, RS485 wiring, inverter settings, and operating modes. <\/div>\n\n

Prerequisites<\/h2>\n\n
\u2022 Inverter and battery firmware are updated (latest version must be used)\u2022 A Modbus module is available\u2022 Required tools and a communication cable (CAT5 or CAT6)\u2022 A Qilowatt account has been created and the app is ready for adding devices \u2192 Creating a user account<\/a><\/div>\n\n

Step-by-step Guide<\/h2>\n\n

1. Preparation<\/h3>\n\n
\u2022 Update the inverter and battery firmware<\/strong> before connecting.\u2022 Ensure the device has the latest firmware<\/strong>, since Qilowatt always relies on the newest Modbus protocol.<\/div>\n\n

2. RS485 connections<\/h3>\n\n
\u2193 Solis S6 3-10kW HV; Solis S6 8-15kW LV \u2193<\/div>\n\n
\"\"<\/div>\n\n
\u2193 Solis S6 12-20kW HV \u2193<\/div>\n\n
\"\"<\/div>\n\n
Solis S6 30\u2013125 kW must be connected to the EMS port, not RS485. (If the battery is a Dyness BF100, the Qilowatt controller must be connected to the EMS port, the battery BMS cable to the BMS port, and the battery EMS cable to the RS485 port.) <\/div>\n\n
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3. Inverter firmware and SolisCloud settings<\/h3>\n\n
<\/path> <\/path> <\/path> <\/g> <\/g> <\/svg><\/div>
\n

It is critical to update the inverter firmware after installation.<\/strong>All firware components must be updated: DSP firmware, HMI firmware, Major firmware and all other inverter firmware components.<\/p>\n\n\n\n

All SolisCloud control functions must be turned OFF.<\/strong>If any of the following functions are enabled in SolisCloud, it is not possible to control the inverter.<\/p>\n<\/div><\/div><\/div>\n\n

1)<\/strong> Solis AI, Peak Valley Arbitrage, Solis EMS and other automatic control functions must be turned OFF.<\/div>\n\n
\"\"<\/div>\n\n
2) <\/strong>Storage Mode \u2192 Charge & Discharge time slots must be turned OFF.<\/div>\n\n
\"\"<\/div>\n\n
\"\"<\/div>\n\n
3)<\/strong> We recommend turning OFF Battery Saving, located under Battery Settings. This setting limits battery usage and reduces charging and discharging power. <\/div>\n\n
\"\"<\/div>\n\n
4)<\/strong> We recommend turning OFF Battery ECO Function, located under Settings -> Function Settings. With some battery systems, it is not possible to charge the battery when it is empty and no PV production is available. <\/div>\n\n
\"\"<\/div>\n\n

Result<\/h2>\n\n
Solis S6 inverter is successfully configured and connected to the Qilowatt system. The module transmits data and enables inverter control and energy optimization. <\/div>\n\n

If it Doesn’t Work<\/h2>\n\n
\u2022 If communication does not work, check the RS485 connections\u2022 If the issue persists, contact our team: support@qilowatt.eu<\/a><\/div>\n\n

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