Publish
- Updated2025-07-28
- 1 minute(s) read
Writes a message to a topic, which immediately sends the message to subscribers of the topic.
Subscribers of a topic receive every message published to the topic.

message session in
Message session established with the server.
message session
Message session established with the server.
topic
Subject to which endpoints publish or subscribe messages.
message
Content published for subscribers of a topic to read.
error in
Error conditions that occur before this VI runs. The VI responds to this input according to standard error behavior.message session out
Message session established with the server.