LVL1::PeriodicScalerTake1st Node1 LVL1::PeriodicScalerTake1st + PeriodicScalerTake1st() + ~PeriodicScalerTake1st() + decision() Node2 LVL1::PeriodicScaler # m_counter # m_last + PeriodicScaler() + ~PeriodicScaler() + decision() + reset() Node2->Node1