The recent advances in Computer Science and Technology have revolutionized the way graphical user interfaces are used towards Human Machine Interface (HMI). The graphical user interface is so powerful, that the knowledge of a process or system can be transferred to plant personnel accurately and effectively within a short period of time. The techniques of animation can enhance the illusion of direct manipulation that many human computer interfaces strive to represent. This paper describes the role of human machine interface using animated information in Full Scope Replica type training simulator of Prototype Fast Breeder Reactor (PFBR). This paper covers general description of PFBR, the Full Scope Replica Simulator, the concept of simulation of plant dynamics, development of the animated core temperature distribution diagram and process flow diagram followed by its features. Also it covers how animated core temperature distribution and dynamic process flow diagrams are advantageous for operator training.