Abstract text

A sequence design support system is used to support a design of a sequence control program which controls a flow path condition of a fluid in an apparatus and piping system which is constructed connecting apparatus such as a valve with piping and comprises a valve pattern plan generation unit which generates a valve pattern plan which is plan data showing the flow path condition per time step of the fluid in the apparatus and piping system from apparatus and piping system plan data which is plan data showing the apparatus and piping system and time chart sheet which is obtained defining the condition of the apparatus in the apparatus and piping system per time step.