# Cannot read data by MODBUS RTU

**URL:** https://discourse.nodered.org/t/cannot-read-data-by-modbus-rtu/30840
**Category:** Hardware
**Created:** [28 July 2020 19:02 UTC](https://discourse.nodered.org/t/cannot-read-data-by-modbus-rtu/30840 "2020-07-28T19:02:00Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Andrei](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/andrei/32/10446_2.png) [@Andrei](https://discourse.nodered.org/u/Andrei)
#### Post date: [28 July 2020 20:49 UTC](https://discourse.nodered.org/t/cannot-read-data-by-modbus-rtu/30840/2 "2020-07-28T20:49:05Z")

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I was playing with a PZEM-016 last Saturday. It was pretty straightforward to enable the communication. I still could make a quick dashboard (a couple of errors pending to correct though) to make it more fun. I will check your flow tomorrow (going out in few minutes). Please edit your message to reformat the code between backticks ([click this link for instructions](https://discourse.nodered.org/t/how-to-share-code-or-flow-json/506)), otherwise i wont be able to test.

 ![ameter-03](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/a/9/a9e78a375429731f4434df62916d68bcbe7d53ed.jpeg)

![energy-meter](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/7/076a105840cf6a974335492f9bd574b58f2f42c8.png)

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