The UDP Start Node.
It is important to note that while the UDP Start Node starts a UDP connection, it may not completely finish establishing said connection when the Node is executed. This could lead to the Logic attached to its Output Pulse to not work even though there is technically nothing wrong. In order to avoid this, it is highly suggested to use the On UDP Start Node instead. This way, the Logic will only execute once the UDP connection has definitely been established.
Again, the user must first use the UDP Start Node to open the connection. Separately, the On UDP Start Node can be used to execute the desired Communication Logic.
UDP Start and On UDP Start Configuration
The UDP Start Node Attributes.