Get values from ROS parameter server
ROS Toolbox / ROS
The Get Parameter block outputs the value of the specified ROS parameter. The block uses the ROS node of the Simulink® model to connect to the ROS network. This node is created when you run the model and is deleted when the model terminates. If the model does not have a node, the block creates one.
On each sample hit, the block checks the ROS parameter server for the specified ROS parameter and outputs its value.