Bacnet Write block

[E1cid]

Hi Andrew and welcome to the forum.

I have never used Bacnet nodes, But most inputs for nodes can be sent in msg.payload, or you may be able to set input to msg.property name. Can you show a image of the bacnet write node config. Also what does the sidebar help text say?

The may also be examples in menu import > examples.
This topic may help

Use external value for BACnet write node?

I have been using the node-red-contrib-bacnet library and everything is working perfectly, I can read and write values to my BACnet controller without an issue. I do have one problem though, I cant figure out how to use the value from another node like a timestamp as the value that is sent by the BACnet write node. When I do it like this it writes the value perfectly: [u1] But it does not work at all when I try to use the msg.payload from another node: [u2] I have tested the msg.payload it…