Digital multifunctional measurement-and-control instrument

Disclosed is a digital multifunctional measurement-and-control instrument, comprising a power supply module, a communication module, a microprocessor, a sampling module, and a man-machine interactive interface. The digital multifunctional measurement-and-control instrument further comprises an analog quantity output module, a switch amount input module, and a switch amount output module, wherein the analog quantity output module is bidirectionally connected with the power supply module; the power supply module is bidirectionally connected with the communication module and the switch amount output module; the switch amount output module is bidirectionally connected with the microprocessor via the switch amount input module; the microprocessor is connected with the man-machine interactive interface; and the sampling module is connected to the microprocessor. The digital multifunctional measurement-and-control instrument of the utility model is provided with the functions of switch amount input detection, switch