# Modbus RTU master

**URL:** <https://discourse.nodered.org/t/modbus-rtu-master/78901>\
**Category:** General\
**Created:** [2 June 2023 13:57 UTC](https://discourse.nodered.org/t/modbus-rtu-master/78901 "2023-06-02T13:57:12Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![VEENS973](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/veens973/32/40589_2.png) [@VEENS973](https://discourse.nodered.org/u/VEENS973)\
**Post date:** [2 June 2023 13:57 UTC](https://discourse.nodered.org/t/modbus-rtu-master/78901/1 "2023-06-02T13:57:12Z")

</div>

hi

I need help to do an rte Modbus master with node red to manage 10 slaves?.

---

<div class="post-metadata">

**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:** [2 June 2023 22:22 UTC](https://discourse.nodered.org/t/modbus-rtu-master/78901/2 "2023-06-02T22:22:28Z")

</div>

What have you tried? Have you installed any modbus nodes? Have you checked the built in demos these nodes provide?

---

<div class="post-metadata">

**Author:** ![VEENS973](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/veens973/32/40589_2.png) [@VEENS973](https://discourse.nodered.org/u/VEENS973)\
**Post date:** [2 June 2023 22:34 UTC](https://discourse.nodered.org/t/modbus-rtu-master/78901/3 "2023-06-02T22:34:54Z")

</div>

I know how to get data for one slave to read holding registers and i want to do the same by 10 slaves in same time or sequencely.

---

<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:** [1 August 2023 22:35 UTC](https://discourse.nodered.org/t/modbus-rtu-master/78901/4 "2023-08-01T22:35:41Z")

</div>

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.