| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device that enables the acquisition of internal information even when the device is powered off. <P>SOLUTION: The field device has a control program that communicates with an external device, a physical memory used by the control program, and a display for displaying information about the control program. The display has a memory capability. The control program writes error information to the physical memory, and feeds the same error information to the display to make a memory display. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
