OH3 Serial Binding ......Can you explain to me?

Setup, Configuration and Use Items & Sitemaps
1

Before switching to OH3 I test my old OH2 sitemaps and there I am on the management of my RFlink in series I succeeded in text mode under VS but with the interface of OH3 I cannot manage with the OH3 serial binding:

I create a thing such as:

Channel_Things
Channel_Things771×657 15.9 KB

At this level if I click on channels I have three options
3Type Channels
3Type Channels710×512 17.2 KB

if I create a chanel linked to a string
we see that the connection is made the string indicates a received frame
String
String698×541 19.7 KB

All this without creating any serial device !!

Now I have created a Serial device and if I click on chanels this time I have 5 options!

Device_Channels
Device_Channels740×444 11.6 KB

I therefore create a first switch to send commands to my RFLink such
Device_Chan_String
Device_Chan_String744×911 25.3 KB

I link an Item Switch on this channel

I create a test page with these Switch and String items

page
page1482×191 7.16 KB

But there the binding of the String is OK but the switch sends absolutely nothing!

log
log843×220 110 KB

What is my mistake?
I managed to do exactly the same thing in text mode under VS
but not through the interface …
and another question why the switch goes back on its own after a few seconds to OFF
thank you in advance
Arpagor

2

On my phone now, but there is now a (beta) binding available created by someone.
You can find the link here:

If you want to troubleshoot the serial binding, perhaps change the logging to trace status to get some more information from it. Perhaps it gives additional hints.