Understanding the Gilbarco Dispenser Two-Wire Protocol The is a proprietary communication standard used to interface Gilbarco fuel dispensers with Point-of-Sale (POS) systems and third-party pump controllers . It operates on a current loop principle, traditionally at 45 mA , although variants like 20 mA or 60 mA may be encountered depending on the specific hardware. Core Technical Specifications
Unlike pure relay-based systems, the Two-Wire Protocol allows the controller to detect specific states (running vs. stopped) and volume delivery in real-time, enabling better inventory management and leak detection monitoring. stopped) and volume delivery in real-time, enabling better
The is a standard communication interface used to connect Gilbarco fuel dispensers (such as the Encore 500 and SK700) to Point-of-Sale (POS) systems and third-party controllers. It utilizes a 2-wire current loop to facilitate real-time data exchange for transactions, inventory management, and diagnostics. Technical Specifications Technical Specifications If you must implement Two-Wire on
If you must implement Two-Wire on a new controller, strictly adhere to the 1200 baud, 20mA current loop, and daisy-chain topology described above. strictly adhere to the 1200 baud
The Gilbarco dispenser two-wire protocol offers several benefits for third-party pump controllers, including: