Gilbarco Dispenser Twowire Protocol For Third Party Pump Controllers New [new] ✧ 〈Easy〉
| Feature | Two-Wire (New Method) | Ethernet / IFSF | Traditional DBox | | :--- | :--- | :--- | :--- | | | <20ms (Critical for presets) | 100-200ms | 500ms+ | | Cabling Cost | Low (existing twisted pair) | High (Cat6/Fiber needed) | Very High (Proprietary) | | Third-Party Support | Newly accessible via converters | Native (if dispenser supports) | Poor (license fees) | | Legacy Dispensers | Works on 20-year-old units | Requires new dispenser | Works but costly |
For decades, the fuel retail industry has operated in a state of semi-walled gardens. Major dispenser manufacturers, particularly Gilbarco Veeder-Root, developed proprietary communication protocols that made it notoriously difficult for third-party point-of-sale (POS) systems, fleet fueling managers, and automated tank gauge (ATG) integrators to communicate directly with the dispenser’s hydraulic components. | Feature | Two-Wire (New Method) | Ethernet
*04P12000L
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 two-wire protocol returns pulses as a frequency. The new converters output these as standard quadrature encoder pulses or Modbus registers. Your third-party pump controller can now read real-time flow data with sub-penny accuracy. Part 4: Benefits of the New Two-Wire Approach Over Alternatives Why go through the trouble of two-wire when you could use IFSF (International Forecourt Standards Forum) or Ethernet? Within 50ms, the Gilbarco dispenser activates the relay
Breakdown: Start (*), Address (04), Preset (P), 2000 (cents), Stop (L). Your third-party pump controller can now read real-time
