As the petroleum retail landscape evolves, the demand for flexible, cost-effective forecourt control systems has increased. Historically, integrating Third-Party Pump Controllers (PPCs) with Gilbarco dispensers required complex, proprietary hardware interfaces or the complete removal of the dispenser’s internal electronics.

The Gilbarco Two-Wire Protocol represents a streamlined standard for communication between the Fuel Management System (FMS) and the dispenser. This brief outlines the technical architecture, wiring specifications, and integration logic required for new installations or retrofits utilizing third-party controllers with Gilbarco two-wire infrastructure.

Two-wire protocol traditionally only controls one product per hose. For blender units (Encore 700), you need extended commands.

For a new third-party controller to successfully operate Gilbarco dispensers via the Two-Wire Protocol, the following integration points must be addressed: