# ATO VFD RS485 control from Node Red

**URL:** <https://discourse.nodered.org/t/ato-vfd-rs485-control-from-node-red/73268>\
**Category:** Industrial\
**Created:** [6 January 2023 00:38 UTC](https://discourse.nodered.org/t/ato-vfd-rs485-control-from-node-red/73268 "2023-01-06T00:38:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dog55](https://avatars.discourse-cdn.com/v4/letter/d/839c29/32.png) [@dog55](https://discourse.nodered.org/u/dog55)\
**Post date:** [6 January 2023 00:38 UTC](https://discourse.nodered.org/t/ato-vfd-rs485-control-from-node-red/73268/1 "2023-01-06T00:38:17Z")

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Hello, I'm doing my first step on Modbus protocols, I'm looking for some guidedance / sample code to control the speed of a Fan connected to the VFD, I was trying to configure the node red with modbus but I din't have much lucky, but the VDF using RS485 and a terminal console working with no issues.

any help is much appreciated.

Thanks.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [7 March 2023 00:39 UTC](https://discourse.nodered.org/t/ato-vfd-rs485-control-from-node-red/73268/2 "2023-03-07T00:39:17Z")

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