Connection

The Connection category contains nodes that can send and receive data values without the need for wire link connections.

Link-Transmitter-Single

This node is the transmitting part of the transmitting-receiving pair of connection nodes, and sends a single values to corresponding receiver nodes.

Inputs

1. input - Input value to be transmitted to corresponding `Link-Receiver-Single` node.
   
2. [topic] - Corresponding topic value to receiver node.
   
3. [enable] - Boolean value to enable the node.
   

Outputs

There are no outputs on this node as the `input` value is sent without links to the corresponding receiver node (with the matching topic).

Settings

1. Name - Name of the node.
   
2. Topic Name - Corresponding topic value to receiver node. Fallback from wired input `topic` value.
3. Enable - Toggle switch to enable the node.
   
4. Only transmit on COV - Toggle switch to send data only when change of value (COV) occurs. 
   

Operations

`input` value is sent to the corresponding `Link-Receiver-Single` node that has the same `topic` value.  It is possible to have multiple `Link-Receiver-Single` nodes with matching topics, but there can only be a single `Link-Transmitter-Single` node per topic.

Link-Receiver- Single

This node is the receiving part of the transmitting-receiving pair of connection nodes, and receives `output` values from corresponding transmitter nodes.

Inputs

1. [enable] - Boolean value to enable the node.
   
2. [topic] - Corresponding topic value to transmitter node. 
   

Outputs

1. output - Output value that is received from the corresponding `Link-Transmitter-Single` with the same `topic` value.
   
2. topic - Corresponding topic value to transmitter node. Can be a numeric or string value.

Settings

1. Name - Name of the node.
   
2. Enable - Toggle switch to enable then node.
   
3. Set topic manually - Toggle switch to enable manual setting of `topic` value.
   
4. Set topic - Manual input of `topic` value. Only used when `Set topic manually` is enabled.
   
5. Select Topic - Drop-down selection box where existing `topics` in the Wires instance can be chosen.
   
6. Block Null - Toggle switch to block outputting values when the received value is `null`.
   

Operations

`output` data value is received from the corresponding `Link-Transmitter-Single` node that has the same `topic` value.  It is possible to have multiple `Link-Receiver-Single` nodes with matching topics, but there can only be a single `Link-Transmitter-Single` node per topic.

Related Articles:

1. Rubix Wires: Working with Nodes