# Modify SMA sunny portal plant parameter

**URL:** <https://discourse.nodered.org/t/modify-sma-sunny-portal-plant-parameter/55583>\
**Category:** General\
**Created:** [22 December 2021 20:05 UTC](https://discourse.nodered.org/t/modify-sma-sunny-portal-plant-parameter/55583 "2021-12-22T20:05:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Whastie](https://avatars.discourse-cdn.com/v4/letter/w/5fc32e/32.png) [@Whastie](https://discourse.nodered.org/u/Whastie)\
**Post date:** [22 December 2021 20:05 UTC](https://discourse.nodered.org/t/modify-sma-sunny-portal-plant-parameter/55583/1 "2021-12-22T20:05:42Z")

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Modify SMA sunny portal plant parameter

I have a photovoltaic plant with:  
1 energy meter 2.0  
1 sunny boy 5.0  
1 Sunny Island 4.4

I would need to switch from node-red when activating battery charging as done from sunny portal.  
Does anyone know how to change these parameters from node.red?

I have SMA integration in Home assistant, but these parameters are not accessible.  
I have tried the node-webconnect, but they are all output parameters  
Since modbus-tcp I have not seen these parameters, since they are accessible through the sunny portal, not directly from the inverters (SB and SI)

I put an image of the parameters that I would like to access from node.red-

Can somebody help me?

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/2/d/2dda37ac0ce5d5318b92b5cac2f98dceecd52a5d.png)

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:** [20 February 2022 20:06 UTC](https://discourse.nodered.org/t/modify-sma-sunny-portal-plant-parameter/55583/2 "2022-02-20T20:06:01Z")

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