The Wake-On-LAN tool Sends a Wake-on-LAN packet to the selected computers. It requires that the computers have been scanned and their MAC address and IP address information is known.
Each computer will be sent a new Wake packet every thirty seconds until the Heartbeat reports the computer online. This process doesn’t use the standard heartbeat interval, so there’s not a need to ensure that the automatic heartbeat is enabled.
For more information about Wake-on-LAN, click here.