发明名称 |
VERFAHREN ZUM BETREIBEN EINES MODULAR AUFGEBAUTEN FELDGERÄTES DER AUTOMATISIERUNGSTECHNIK |
摘要 |
<p>The invention relates to a method for operating a modularly constructed automation technology field device, which has a number of exchangeable electronics modules M1, M2 and which comprises software functionalities that can be enabled via a security code SC. According to the invention, it is verified whether one of the modules has been exchanged and whether one of the modules has a valid security code. A valid security code exists if the stored value of the security code matches a value calculated from the serial number of the field device. If a plausible serial number and a valid security code exist in one of the modules, the software functionalities are enabled according to the valid security code(s) SC. If no plausible serial number exists, all software functionalities that can be enabled via security codes are blocked.</p> |
申请公布号 |
DE502005007634(D1) |
申请公布日期 |
2009.08.13 |
申请号 |
DE20055007634T |
申请日期 |
2005.09.16 |
申请人 |
ENDRESS + HAUSER FLOWTEC AG |
发明人 |
BORST, WALTER;KOUDAL, OLE;SEIFERT, OLIVER |
分类号 |
G05B19/418 |
主分类号 |
G05B19/418 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|