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    • 3. 发明公开
    • Security key
    • Sicherheitsschlüssel
    • EP2413209A1
    • 2012-02-01
    • EP10173986.0
    • 2010-08-25
    • ICS Triplex Technology Limited
    • Creech, GeraldMeagher, Thomas
    • G05B19/042G06F21/00
    • G05B19/0428G05B2219/24161G05B2219/24206
    • This invention relates to a security key for use in an Industrial Process Control System. The invention provides an apparatus for industrial process control comprising a plurality of processor assemblies and a plurality of input/output assemblies in communication with one another via a backplane portion in which the apparatus further comprises a security key connectable to the backplane portion and containing a resistive element corresponding to each processor assembly and having a respective first predetermined resistance and in which access to a first set of control programs on each processor assembly is disabled unless a resistive element of said respective first predetermined resistance is detected.
    • 本发明涉及一种用于工业过程控制系统的安全密钥。 本发明提供了一种用于工业过程控制的装置,其包括多个处理器组件和经由背板部分彼此通信的多个输入/输出组件,其中该装置还包括可连接到背板部分并且包含电阻 元件,其对应于每个处理器组件并且具有相应的第一预定电阻,并且其中对每个处理器组件上的第一组控制程序的访问被禁用,除非检测到所述相应的第一预定电阻的电阻元件。