Method, device and equipment for calculating switching time of DCS (Distributed Control System) and medium

The invention discloses a method, a device, equipment and a medium for calculating switching time of a DCS (Distributed Control System), which are applied to the field of DCS control. The method provided by the invention comprises the following steps: acquiring a first power supply signal sent to a DCS controller by an external signal source; obtaining a second power supply signal obtained after the DCS controller processes the first power supply signal; and comparing the first power supply signal with the second power supply signal, and determining the switching time of the DCS system. According to the invention, the comparison result of the first power supply signal provided by the external signal source and the second power supply signal processed by the DCS controller is used as the switching time of the DCS system, that is, two output signals are adopted, and the change trend of the two output signals is calculated, so that the relatively accurate switching time of the DCS system can be obtained, errors