Signal generation and acquisition device for measuring response time of protection system

The invention belongs to the technical field of nuclear power plant operation monitoring, and particularly relates to a signal generation and acquisition device for measuring the response time of a protection system. The device comprises a command analysis module, a bus communication module, a main controller module, a signal output module, a signal input module and a time recording module. A signal output and input module is adopted to replace a conventional signal generator and an oscilloscope, so that conventional signal output and measurement means are simplified, and the test efficiency is improved. A signal channel self-checking function is achieved, channel self-checking can be executed before a test, and the availability of a channel is guaranteed. The input module and the output module are integrated in the same case and are connected with the channel selector through the quick connectors, so that manual disassembly of a large number of cables is avoided, and the possibility of human errors is reduced. The signal output module outputs a signal to the protection cabinet and sends a step voltage signal as a time label at the same time, and is used for responding to automation of time result calculation.