# Solax X1 G4 inverter RTC modbus address

**URL:** <https://discourse.nodered.org/t/solax-x1-g4-inverter-rtc-modbus-address/80598>\
**Category:** Hardware\
**Created:** [16 August 2023 05:19 UTC](https://discourse.nodered.org/t/solax-x1-g4-inverter-rtc-modbus-address/80598 "2023-08-16T05:19:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![grahambaxter](https://avatars.discourse-cdn.com/v4/letter/g/f0a364/32.png) [@grahambaxter](https://discourse.nodered.org/u/grahambaxter)\
**Post date:** [16 August 2023 05:19 UTC](https://discourse.nodered.org/t/solax-x1-g4-inverter-rtc-modbus-address/80598/1 "2023-08-16T05:19:06Z")

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A long shot but does anyone know how to write to the six RTC registers on a Solax X1 G4 using modbus. I can read the registers but can't see how to write to them.  
Thank you

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [15 October 2023 05:19 UTC](https://discourse.nodered.org/t/solax-x1-g4-inverter-rtc-modbus-address/80598/2 "2023-10-15T05:19:30Z")

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