Abstract: A modular control system for a mineral extraction system includes a first control module positioned at a first location within a riser of the mineral extraction system and a second control module positioned at a second location within the riser closer to a wellhead of the mineral extraction system than the first location. The first control module includes a first electronics module configured to output and receive control signals, an energy storage unit, and a hydraulics system configured to generate a flow of pressurized fluid. The second control module includes a second electronics module communicatively coupled to the first electronics module and configured to output and receive additional control signals, and valves communicatively coupled to the second electronics module, fluidly coupled to the hydraulics system, and configured to adjust operations of the mineral extraction system.