# Usr-tcp232 setup

**URL:** <https://discourse.nodered.org/t/usr-tcp232-setup/82004>\
**Category:** General\
**Created:** [13 October 2023 14:03 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004 "2023-10-13T14:03:58Z")\
**Posts on this page:** 16\
**Page:** 1

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**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [13 October 2023 14:03 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/1 "2023-10-13T14:03:58Z")

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I am trying to integrate a usr tcp-232-302 Ethernet to serial port converter and have yet to get it to talk through TCP or UDP using NR. Anyone else using one of these and can give me some pointers?

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**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [13 October 2023 14:26 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/2 "2023-10-13T14:26:14Z")

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Doesn't it just offer up a TCP Server that you can connect to.  
Assuming its configured with your Lan Network?

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**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [13 October 2023 14:29 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/3 "2023-10-13T14:29:21Z")

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It does, but I have been unable to get it to show connected, and/or not get an error when I try to use a tcp node.

 ![IMG_0375](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/f/dfc9947fb592d715faf5a82ffccbec907736d38b.jpeg)

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**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [13 October 2023 14:31 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/4 "2023-10-13T14:31:19Z")

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What's the `work mode` under `Serial Port` on the web interface for it?

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<div class="post-metadata">

**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [13 October 2023 14:33 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/5 "2023-10-13T14:33:39Z")

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Tcp server

 ![IMG_0376](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/6/663908e294de128e7cafd44226c0618679bd71fc.png)

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**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [13 October 2023 14:41 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/6 "2023-10-13T14:41:27Z")

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Strange,  
Maybe try and reverse roles?

Create a TCP Server in Node RED, and set it up as a Client.  
I'm assuming it uses a Standard TCP/IP protocol?

it looks like it should connect

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<div class="post-metadata">

**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [13 October 2023 14:46 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/7 "2023-10-13T14:46:36Z")

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I got it to connect... Under misc settings it had a max client and that was defaulted to zero. Now to get the serial ports to talk...

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [13 October 2023 14:47 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/8 "2023-10-13T14:47:48Z")

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Nice - have fun!

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<div class="post-metadata">

**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [13 October 2023 14:59 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/9 "2023-10-13T14:59:11Z")

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It is seeing something! 8 bytes. Now for the device to actually change...

 ![IMG_0377](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/0/8026969166fc5b496203b28e7ebb216753ec2535.png)

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [13 October 2023 16:06 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/10 "2023-10-13T16:06:30Z")

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Get a USB to Serial adapter - open up a terminal and you should be able to test 2 way comms between Node RED and whatever host is connected to the kit with the USB to serial adapter

Edit  
Set up an **echo** flow in Node RED

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<div class="post-metadata">

**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [13 October 2023 16:09 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/11 "2023-10-13T16:09:29Z")

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I have that, but I probably need a null modem adapter too.

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**Author:** ![BastelKlaus](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@BastelKlaus](https://discourse.nodered.org/u/BastelKlaus)\
**Post date:** [14 October 2023 15:31 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/12 "2023-10-14T15:31:12Z")

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Hi Napalmcsr,  
i answer to your question of my old thred:

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/5/f54c28660d7433137fd709f0145884fd9088070b.png)  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/f/ff182e8b89385badd72b3dd7cf5e52f1ea364679.png)

Maybe it helps

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<div class="post-metadata">

**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [14 October 2023 15:31 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/13 "2023-10-14T15:31:52Z")

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Thank you!!!!

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<div class="post-metadata">

**Author:** ![BastelKlaus](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@BastelKlaus](https://discourse.nodered.org/u/BastelKlaus)\
**Post date:** [14 October 2023 15:41 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/14 "2023-10-14T15:41:50Z")

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![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/3/83e1727022b535eeb50528bb9f875df88f3c59fd.png)

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<div class="post-metadata">

**Author:** ![Napalmcsr](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/napalmcsr/32/30910_2.png) [@Napalmcsr](https://discourse.nodered.org/u/Napalmcsr)\
**Post date:** [16 October 2023 20:10 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/15 "2023-10-16T20:10:47Z")

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Thanks everyone! After getting the setup correct, and a couple of gender changes and null modem connections, I have this working!

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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:** [15 December 2023 20:10 UTC](https://discourse.nodered.org/t/usr-tcp232-setup/82004/16 "2023-12-15T20:10:51Z")

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