Directing against problems concerning loss of operating and supervisory display for pictures and parameters due to faults occurred repeatedly in the process control unit(PCU) of DCS for units in second-phase project of Beilun Power Generation Co Ltd No.1

and thereby the operation control can't be realized

then

the parameters

process

and its control logic related to fault in PCU have been analysed

and an emulation program for PCU fault resulting in loss of picture display and of operation control being designed and developed on an emulator

and practical application being carried out

completely realizing the emulation of faults

obtaining good result.