heartbeat

Definition: function that indicates to a clientapplication that sends request for information to an agent. > Note: Examples include software applications or a function that implements the request portion of an interface interaction model. that the communications connection to an agentsoftware that collects data published from one or more piece(s) of equipment, organizes that data in a structured manner, and responds to requests for data from client software systems by providing a structured response in the form of a response document that is constructed using the semantic data model of a Standard. is still viable during times when there is no new data available to report often referred to as a “keep alive” message.