| 摘要 |
<p>PURPOSE:To change control information to a new one without stopping an apparatus to be controlled by storing new control information in a stand-by area and then rewriting the contents of an address stored in a control table by the contents of an address stored in a stand-by table. CONSTITUTION:At the time of inputting new control information, a loading execution part 12 discriminates the execution state of a program relating to a change based upon management information stored in a program ID management table 3a. When the program is not being executed or is not in an executable state, the loading execution part 12 stores said new control information in an area specified by an address stored in the table 3a. When said program is being executed or in the executable state, the execution part 12 stores the new control information in a stand-by area specified by an address stored in a temporary ID management table 3e. An allocation part 13 rewrites the contents of the address in the table 3a by that of the table 3e.</p> |
