# How to send Free write data using modbus RTU?

**URL:** <https://discourse.nodered.org/t/how-to-send-free-write-data-using-modbus-rtu/75785>\
**Category:** General\
**Tags:** modbus\
**Created:** [27 February 2023 03:53 UTC](https://discourse.nodered.org/t/how-to-send-free-write-data-using-modbus-rtu/75785 "2023-02-27T03:53:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![akatsuki92](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/akatsuki92/32/76823_2.png) [@akatsuki92](https://discourse.nodered.org/u/akatsuki92)\
**Post date:** [27 February 2023 03:53 UTC](https://discourse.nodered.org/t/how-to-send-free-write-data-using-modbus-rtu/75785/1 "2023-02-27T03:53:44Z")

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I want send 01 16 10 10 00 01 02 00 00 352B to slave device.  
its must use 16H function code and 10 10 (hex) is the address to reset that device.  
what should i do? Please Help Me..

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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:** [28 April 2023 03:54 UTC](https://discourse.nodered.org/t/how-to-send-free-write-data-using-modbus-rtu/75785/2 "2023-04-28T03:54:27Z")

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