The ActuatorAgent can be configured to send a heartbeat message to the device to indicate the platform is running. Ideally, if the heartbeat signal is not sent the device should take over and resume normal operation.
The configuration has two parts, the interval (in seconds) for sending the heartbeat and the specific point that should be modified each iteration.
The heart beat interval is specified with a global “heartbeat_interval” setting. The ActuatorAgent will automatically set the heartbeat point to alternating “1” and “0” values. Changes to the heartbeat point will be published like any other value change on a device.
The heartbeat points are specified in the driver configuration file of individual devices