# Have writing to a usb to RS-485 adapter working but how do I read back the response?

**URL:** <https://discourse.nodered.org/t/have-writing-to-a-usb-to-rs-485-adapter-working-but-how-do-i-read-back-the-response/29319>\
**Category:** General\
**Created:** [1 July 2020 15:31 UTC](https://discourse.nodered.org/t/have-writing-to-a-usb-to-rs-485-adapter-working-but-how-do-i-read-back-the-response/29319 "2020-07-01T15:31:23Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**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:** [1 July 2020 21:49 UTC](https://discourse.nodered.org/t/have-writing-to-a-usb-to-rs-485-adapter-working-but-how-do-i-read-back-the-response/29319/12 "2020-07-01T21:49:35Z")

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Which debug is giving you replies? suspect it's the top one attached to the serial request & the 2nd serial in node isn't required.

And now you are getting data back, can you do the following?...

> [@Help with creating a buffer of hex bytes from a string of hex words](https://discourse.nodered.org/t/help-with-creating-a-buffer-of-hex-bytes-from-a-string-of-hex-words/29259/12):
>
> 1. Set the debug to show complete msg
> 
> ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/5/9548bfb49b72f6066167303b9dd351b88bc6e145.png)
> 
> 1. Copy the data response you get and paste it (as code) into a reply  
> ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/1/11ee7aff0f46002f47c988afa0cb520cd721e606.png)
> 2. Tell me what each part _should_ be (e.g. first 4 digits are temperature and should be 31.5 etc)

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