Lo scenario
A mine truck requests entry at a gate. The gate opens only if dispatch has approved the entry, no emergency stop is active, and no truck is already in the gate zone (a truck-passed sensor resets the latch). A maintenance override can force the gate open.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
An SR flip-flop latches the gate open from the SET condition until the truck-passed sensor triggers RESET, ensuring the gate stays open long enough for the truck to pass.
02
A maintenance override bypasses the logic to open the gate unconditionally for servicing or emergency access.
Reusable for any gated entry system requiring conditional approval, safety interlock, and manual override.
Sfoglia tutti i modelli di tipo diagramma delle porte logiche →