# Modbustcp vs modbus?

**URL:** <https://discourse.nodered.org/t/modbustcp-vs-modbus/21171>\
**Category:** General\
**Created:** [2 February 2020 14:03 UTC](https://discourse.nodered.org/t/modbustcp-vs-modbus/21171 "2020-02-02T14:03:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PPz](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ppz/32/15429_2.png) [@PPz](https://discourse.nodered.org/u/PPz)\
**Post date:** [2 February 2020 14:03 UTC](https://discourse.nodered.org/t/modbustcp-vs-modbus/21171/1 "2020-02-02T14:03:19Z")

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I read modbus (TCP) plc's addresses through modbustcp contrib. I put the IP address, the port and I read registers. Fine (except some time-out errors).

I installed also the modbus contrib and it seems that I can reach also TCP units with this method.

I need to collect about 60-70 registers, transform them and send them through MQTT

Is is an advantage to use one contrib or another ?  
Thank you

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**Author:** ![Iqapps](https://avatars.discourse-cdn.com/v4/letter/i/eada6e/32.png) [@Iqapps](https://discourse.nodered.org/u/Iqapps)\
**Post date:** [2 February 2020 22:20 UTC](https://discourse.nodered.org/t/modbustcp-vs-modbus/21171/2 "2020-02-02T22:20:41Z")

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[Watch this](https://youtu.be/f6BhSprc9i4)

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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:** [2 April 2020 22:20 UTC](https://discourse.nodered.org/t/modbustcp-vs-modbus/21171/3 "2020-04-02T22:20:42Z")

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