Device and method for testing communication protocol of low-voltage intelligent circuit breaker

The invention discloses a communication protocol testing device for a low-voltage intelligent circuit breaker. The communication protocol testing device comprises a testing controller and a standard source, test case data of multiple test types are preset in the test controller, and the test case data comprise circuit breaker setting parameters, standard source control parameters, response data reading type parameters and result reference data; the test controller is configured to determine a test type according to an external test instruction, send a corresponding circuit breaker parameter setting message to the tested equipment, control the standard source to generate a corresponding standard source signal, and transmit the standard source signal to the tested equipment with set circuit breaker parameters; and then reading the type parameter according to the response data, sending a reading request message to the tested equipment, analyzing a response data message returned by the tested equipment, and judgi