# Node-red disconnects using modbus

**URL:** <https://discourse.nodered.org/t/node-red-disconnects-using-modbus/64531>\
**Category:** General\
**Tags:** modbus\
**Created:** [30 June 2022 07:45 UTC](https://discourse.nodered.org/t/node-red-disconnects-using-modbus/64531 "2022-06-30T07:45:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![samirovic](https://avatars.discourse-cdn.com/v4/letter/s/da6949/32.png) [@samirovic](https://discourse.nodered.org/u/samirovic)\
**Post date:** [30 June 2022 07:45 UTC](https://discourse.nodered.org/t/node-red-disconnects-using-modbus/64531/1 "2022-06-30T07:45:53Z")

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Hello,  
I use the Node Red to send data in Modbus to a PLC, it is sent every 5s but for a moment the Node Red disconnects and it stops sending the data.  
I configured the Node Red to start automatically with the Raspberry Pi.  
I use the Raspberry with root privileges on port 502 TCP.

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**Author:** ![grant1](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/grant1/32/49890_2.png) [@grant1](https://discourse.nodered.org/u/grant1)\
**Post date:** [5 July 2022 09:42 UTC](https://discourse.nodered.org/t/node-red-disconnects-using-modbus/64531/2 "2022-07-05T09:42:01Z")

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@samirovic Can you link to the exact Modbus node you are using (incl the version you have installed, of both that node and Node-RED), and also show a screenshot of your settings for that node?

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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:** [3 September 2022 09:42 UTC](https://discourse.nodered.org/t/node-red-disconnects-using-modbus/64531/3 "2022-09-03T09:42:18Z")

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