2.4 | Tractor / Electrohydraulic Compatibility
COMMAND can make use of either in-built rear tractor electrohydraulic valves, commonly referred to as SCVs (Selectable Control Valves) or auxiliary remotes, or externally mounted electrohydraulic valves.
For each valve type, COMMAND is able to provide two raise and lower functions for automatic control of function 1 (e.g. height) and function 2 (e.g. cross-slope / tilt). For CANBUS based valve types, any available SCVs/Remotes will be available for selection.
For proportional solenoid, Analog Voltage (0-5V) and Danfoss PVE types, the number of selectable outputs is limited to the number of available physical outputs on the ECU suitable for analog voltage laser inputs or external EH valves.
| Valve Interface | Description | Applicable Valve Adapter/s | Suitable example tractors/valves |
| JD CAN | COMMAND can communicate directly with John Deere SCVs over CANBUS, sending flow requests that will be enacted by the John Deere tractor hydraulic system. | N/A | Most modern John Deere tractors, e.g. 8R, 8RT, 9R, 9RT, 9RX. |
| J1939 | COMMAND can communicate directly with the T3RRA VM or other compatible hydraulic controllers using the J1939 messaging standard. | N/A | Challenger tracked machines |
| Fendt SCR/S4/MT | COMMAND can communicate directly with Fendt SCVs over CANBUS, sending flow requests that will be enacted by the tractor hydraulic system. |
Use T3H-V005 and S/111 valve adapters. |
Fendt SCR, S4 and MT models where the SCV control bus is separated from the ISOBUS. |
| Fendt ONE | COMMAND can communicate directly with Fendt SCVs over CANBUS, sending flow requests that will be enacted by the tractor hydraulic system. | Use T3H-V005 |
Fendt Gen 7 / ONE tractor models |
| Analog Voltage (0-5V) | COMMAND can provide 0-5V analog voltage signals suitable for John Deere legacy proportional SCV controller or Case IH / New Holland 0-5V EHR controller inputs. | Use T3H-V001 valve adapter. | Case 0-5V EHR inputs or John Deere legacy proportional laser inputs. |
| Proportional Solenoid | COMMAND can provide closed-loop PWM signals suitable for controlling external proportional solenoid valves requiring maximum flow current of less than 2 Amps. | Use T3H-V002 and T3H-V003 valve adapters. | Scraper systems using external proportional solenoid valves such as Eaton Vickers, Rexroth or Hydac. |
| Danfoss PVE | COMMAND can provide 0-Vs ratiometric voltage signals as well as power supply suitable for controlling external Danfoss PVEM, PVEA, PVEH and PVES valves. | Use T3H-V006 and T3H-V007 valve adapters. | Scraper systems using external closed-loop proportional valves such as Danfoss PVEM, PVEA, PVEH or PVES. |