PURPOSE: To output only necessary detailed items by easily setting whether or not data corresponding to an output request from an external device is outputted from a data holding means that the device is equipped with by detailed items in specific output units.

CONSTITUTION: The data holding means 3 is provided with a setting means 6 which sets whether or not there is an output to the outside by the detailed items K1-K2 in the specific units P, and the data holding means 3 outputs only data of the detailed item for which the presence of output is set among the respective detailed items K1-K22 in the specific units P1, P2...Pn corresponding to specification contents from the external device 2.