Gilbarco Dispenser Twowire Protocol For Third Party Pump Controllers New -

Each fueling point is assigned a unique hex address (e.g., 1 through 16).

Introduction to Gilbarco Two-Wire Communication Fuel retail automation relies on stable communication between the Point of Sale (POS) system, the forecourt controller (FCC), and the fuel dispensers. Gilbarco Veeder-Root uses a proprietary current-loop signaling system known as the . Each fueling point is assigned a unique hex address (e

The controller continuously sends a Status Poll command to every configured dispenser address. The dispenser answers with its current state: the forecourt controller (FCC)

. For third-party controller developers, mastering this protocol requires understanding its physical current loop interface and its multi-drop messaging structure. www.mchip.net Physical Layer: 2-Wire Current Loop Each fueling point is assigned a unique hex address (e

Breakdown: Start (*), Address (04), Preset (P), 2000 (cents), Stop (L).