Doing Calculations on Modbus data

That's ok. You just use what you need in the next nodes.

For example, connect the output of the last node (with all the data) to multiple dashboard nodes & set each one to show one data item.

Tbh, you seem a bit green. You would do well to learn a bit more. In particular, how to use the debug panel to find the right path to any data item.

https://nodered.org/docs/user-guide/messages

Additionally, I recommend watching 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.


Ps, in order to make code more readable and importable it is important to surround your code with three backticks
```
like this
```

You can edit and correct your post by clicking the pencil icon.

See this post for more details - How to share code or flow json