Subsea control systems are systems used to control and monitor subsea operations. They are used to control and monitor the operation of subsea equipment such as pumps, valves, and other subsea components. Subsea control systems are typically used in offshore oil and gas production, as well as in other subsea operations such as deepwater exploration and production. Subsea control systems are designed to provide reliable and accurate control of subsea operations, and to ensure the safety of personnel and equipment.