The development and maintenance of the upper-layer applied function software are key points for establishment of plant-level supevisory information system(SIS) in thermal power plant.In order to enhance the efficiency in development

application

and maintenance of the function model

the development of SIS function model softwares based on integrated model-developing platform has been put forward

the structure of SIS software system

the functions of model-developing platform

as well as the developing process and method of modularized SIS function model based on said model-developing platform being presented.Application shows that the SIS software based on said model-developting platform has short developing period

boasting good publicity of system

being stable in operation

and being easily to use and to maintain.