Blank ROS 2 message, returned as a non-virtual bus. To specify the type of ROS message, use the Message type parameter. All elements of the bus are initialized to 0. The lengths of the variable-length arrays are also initialized to 0.

Data Types: bus

ROS 2 message type, specified as a character vector or a dialog box selection. Use Select to select from a list of supported ROS messages. The list of messages given depends on the Class of message you select.

Interval between outputs, specified as a numeric scalar. The default value indicates that the block output never changes. Using this value speeds simulation and code generation by eliminating the need to recompute the block output. Otherwise, the block outputs a new blank message at each interval of Sample time.

For more information, see Specify Sample Time (Simulink).