Gilbarco Dispenser Twowire Protocol For Third Party Pump Controllers New Link

Older Gilbarco Advantage and Encore 300 dispensers used heavy encryption on the two-wire bus. However, with the sunsetting of legacy hardware and the rise of the and FlexPay 6 series, Gilbarco introduced a "Legacy Compatibility Mode." New dispensers can now output a simplified, unencrypted subset of the two-wire protocol specifically to accommodate third-party automated fueling systems (ATFs) and car wash controllers.

This is not the same as Gilbarco’s newer “Ethernet/EDH” (Encryption Device Handling) or “Passport” protocol. It is unencrypted , polled , and half-duplex . Older Gilbarco Advantage and Encore 300 dispensers used

For new third-party pump controllers needing basic compatibility with Gilbarco dispensers, the remains a viable, simple, and deterministic interface. However, it is strongly recommended to evaluate whether the dispenser fleet supports Gilbarco’s current Ethernet/IDT (Intelligent Dispenser Terminal) protocol, which offers richer data and better diagnostics. It is unencrypted , polled , and half-duplex

The converter then translates this into the two-wire current loop pulse train. Within 50ms, the Gilbarco dispenser activates the relay for that hose. The converter then translates this into the two-wire

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.