Map financial collection workflows safely by ensuring the dispenser state transitions completely to "Collect" before pulling transaction totals. Share public link
Despite the rise of Ethernet-based dispensers and wireless forecourt technologies, the Two-Wire protocol is favored for its reliability. It is simple to troubleshoot with a basic multimeter and is compatible with decades of existing underground wiring. For a third-party controller, supporting this protocol ensures 99% compatibility with the global install base of Gilbarco Veeder-Root hardware. To help you move forward with your project, let me know:
A third-party controller manages the dispenser by constantly looping through specific operational states.
: Optional data specific to the request (e.g., fuel price configuration, preset amount).
Loop current is interrupted (0mA).
Integrating a third-party POS with Gilbarco dispensers via the Two-Wire Protocol generally follows this workflow:
Since the protocol is proprietary, third-party pump controllers often require specialized hardware interfaces to convert the current loop signal into standard serial (RS-232/RS-485) or USB formats. 4-20mA Comunications - All About Circuits Forum
