Numerical control and the numerical control system in which the control is connected via a network

摘要

A numerical control has a bus - trace - circuit, which is arranged to retrieve a bus - cycle, the predetermined conditions are satisfied, an alarm - history, an alarm data - obtaining table in which is stored for each alarm whether trace - data are to be obtained, and a trace - circuit of an adjusting table in which retrieval conditions of the bus - cycle of the bus - trace - circuit for each alarm are recorded, wherein the controller identifies an alarm, for the trace - to retrieve data from, according to the alarm - history and the alarm data - obtaining table, the retrieval conditions of the bus - cycle corresponding to the alarm, from the trace - circuit of an adjusting table reads out, the retrieval conditions in the bus - trace - circuit, and to adjust the trace - data of the bus - cycle corresponding to the retrieval conditions set via the bus - trace - circuit is becoming.