Don't settle for research data that is just "good enough". PLC (Programmable Logic Controller) control system. The SRES Classic Controls is the most economical of all the automated control systems. The Classic was designed to meet all the expectations of a precision planter for the same price as a cone planter. Unlike a cone planter, which will always be a cone planter, you can always upgrade our Classic. A PLC (Programmable Logic Controller) is used as the control mechanism. Seed spacing is controlled by a mechanical transmission and the number of holes on the seed plate. All gates and valves are controlled by electro-mechanical actuators. The SRES Classic controls have only 2 main settings to change which makes for easy use and quick adjustment when your plans change in the field. The Classic Planter has many different tripping options, manual trip, cable winder, check heads or GPS. Visit www.sresweb.com/classic or scan the QR code for more details about the Classic Controls, with smartphone