Distributed control system terminal display blank screen warning method

The invention relates to a distributed control system terminal display blank screen warning method which mainly solves the problems that display space is finite, display pictures are single, and dangers are not handled in time in the prior art. According to the technical scheme adopted for solving the problems, the distributed control system terminal display blank screen warning method includes the steps that an OLED transparent display screen (a front screen) with a touch function is fixed in front of an original distributed control system terminal display screen (a rear screen) through a positioning support, parameters of the transparent display screen are controlled through a microprocessing system, communication with a computer host is conducted, and corresponding data and information are transmitted, analyzed and displayed. The distributed control system terminal display blank screen warning method can be used for distributed control system terminal display blank screen warning.