| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To realize a field bus system executing reengineering and software exchange to a plurality of field equipments in parallel without requiring filed work by use of communication infrastructure of the field bus system, and allowing easy execution of history management or revision of software. <P>SOLUTION: In this field bus system wherein the field equipments mounted with the software communicates with an upper device via a field bus, the upper device has a software download means for downloading the software to the field equipments. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
