Subsea production control system is used to control and monitor subsea X-mas trees, downhole equipment and manifolds as well as subsea processing stations. There are two types of control systems such as electric and direct hydraulic control systems. An electro hydraulic control system consists of topside located computer system from which daily operation may be performed and where the safety system is interfaced. The subsea control module is the main part of subsea control systems. It contains electronics, instrumentation and hydraulics for safe and efficient operation of subsea and downhole valves. The SCM provides interfaces for communication with the topside system via the control umbilical and for downhole and subsea located instrumentation for production process monitoring and optimization.