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Sure-Fi Serial Data Bridge
Setting the System Heartbeat time
The system Heartbeat is the time interval when the system will automatically perform a system status check if
there have not been radio communications between the units during that time. The Heartbeat timer is reset
each time any successful transmission occurs between units during regular usage. The Heartbeat system
status check verifies communication between units and that all output states correspond correctly with the
given inputs. If a unit does not receive the Heartbeat, it will continue to attempt communications and it will
keep all outputs set at their current state unless any of the outputs have been set for fail-safe values using the
App. In that case, the unit will set the output values as configured when the set time interval is reached. The
Heartbeat time interval and the number of Heartbeats that can be missed are configurable with the App.
Setting a Relay default state, timeout, and setting an Alert Relay
This feature is defaulted from the factory as disabled. With Relay default state disabled, the relays will remain
in their current state during any time that communications with the paired unit are interrupted. The relays
can be set to default as activated or deactivated after a set time interval has passed if communication with the
paired unit is interrupted. The time interval is based on multiples of the Heartbeat time. When the time
interval is reached, the relay(s) will go to the selected default state (activated or deactivated) as configured in
the App and will remain in that state until regular system activity returns. This feature provides a way to
define the relay default state if communications between units is interrupted for a period of one or more
Heartbeat time intervals.
