Each VM sends a heartbeat, or periodic message, to your application to indicate that the VM is still running and available. The default interval is one heartbeat message every 30 seconds, which you can modify.
Click Record.
Expand SysAdmin > Dynamic System Settings.
Click Pegarobotics/HeartbeatInterval in the Pega-ProcessEngine ruleset.
In the Settings tab, in the Value field, enter the interval, in seconds, during which each VM sends a heartbeat to the system.
Click Save.