I was thinking about it is possible there are a converting node or something. So i can use Structured text/ SCL known from PLC's. So i can continue use that language instead of learn javascript or Json.
Anyone else there are working as plc engineer
and have that issued?
Unfortunately, there is no such parser/transpiler for ST --> JS.
You could make one but ironically you'd have to learn JavaScript
Truth is Marcus, JavaScript is far richer and far more capable than ST and not that difficult to get to grips with.
Note also, you can do A LOT without touching JavaScript.
To get the most from node-red (without learning JavaScript) this is the approach i would recommend...
Get to grips with what is a string, JSON, object (this will become apparent in time - but trust me on this one)
JSON is a string.
The good thing about JSON is it can be converted to an object
Objects permit you to do things like this...
Watch this playlist: Node-RED Essentials. The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot more in about 1 hour. A small investment for a lot of gain.