# Modbus-client enable/disable

**URL:** <https://discourse.nodered.org/t/modbus-client-enable-disable/60194>\
**Category:** General\
**Created:** [22 March 2022 13:38 UTC](https://discourse.nodered.org/t/modbus-client-enable-disable/60194 "2022-03-22T13:38:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Aivaras1](https://avatars.discourse-cdn.com/v4/letter/a/8797f3/32.png) [@Aivaras1](https://discourse.nodered.org/u/Aivaras1)\
**Post date:** [22 March 2022 13:38 UTC](https://discourse.nodered.org/t/modbus-client-enable-disable/60194/1 "2022-03-22T13:38:00Z")

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Hello,

Is it possible to disable a modbus-client using a function or a command ?  
I am using this library - [node-red-contrib-modbus (node) - Node-RED](https://flows.nodered.org/node/node-red-contrib-modbus)

Best Regards  
Aivaras

 ![modbus](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/8/98cdd7a32aa726e8bb517aff03a334a63901a638.png)

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [22 March 2022 13:47 UTC](https://discourse.nodered.org/t/modbus-client-enable-disable/60194/2 "2022-03-22T13:47:22Z")

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No, the "Enable/disable" is a deploy type change.

Read the modbus nodes built in help and home page "readme" - it may accept a topic or payload that enables/disabled polling.

Alternatively, if you use modbus getter and interupt the trigger with something that BLOCKS/ALLOWS the flow of a msg...

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/7/3/73b43343bd414ca4c2207612783f438422e2216d.png)

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<div class="post-metadata">

**Author:** ![Aivaras1](https://avatars.discourse-cdn.com/v4/letter/a/8797f3/32.png) [@Aivaras1](https://discourse.nodered.org/u/Aivaras1)\
**Post date:** [22 March 2022 13:49 UTC](https://discourse.nodered.org/t/modbus-client-enable-disable/60194/3 "2022-03-22T13:49:01Z")

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Thank you for information 🙂

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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:** [5 April 2022 13:49 UTC](https://discourse.nodered.org/t/modbus-client-enable-disable/60194/4 "2022-04-05T13:49:08Z")

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