Hardware-based Watchdog Relay monitors and provides fail-safe shutdown of processes controlled by RTUs, PLCs, or other automation devices. It's announced to "help proactively protect unmanned processes on a 24/7 basis."
The automation design monitors pulsing output heartbeat of a connected device to add extra safety in oil and gas operations. If the heartbeat stops (power surges, extreme weather, device malfunctions) Watchdog's built-in Form C relay immediately energizes. It delivers a signal for safe process shutdown. The signal sent upon loss of control helps avoid costly materials and equipment damage. Since Watchdog Relay has no software to lock-up or fail - it is particularly applicable on valves, pipelines, heavy machinery, or other critical items.