Authenticated backplane access

Industrial controller modules are configured with security components that implement backplane-level security protocols, thereby preventing installation of unauthorized modular devices on the backplane of an industrial controller. When a modular device is installed in the controller's chassis a...

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Bibliographische Detailangaben
Hauptverfasser:	Tambascio, Kevin M, Bush, Michael A, Jasper, Taryl J
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS CALCULATING COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HOROLOGY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ORDER TELEGRAPHS PHYSICS REGULATING SIGNALLING SIGNALLING OR CALLING SYSTEMS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	Industrial controller modules are configured with security components that implement backplane-level security protocols, thereby preventing installation of unauthorized modular devices on the backplane of an industrial controller. When a modular device is installed in the controller's chassis and interface with the backplane, security components in the processor module or other supervisory module initiates exchange of authentication data with the modular device via the backplane. The authentication data can comprise one or more security challenges to which the modular device must respond correctly before the modular device is permitted to operate on the backplane. These backplane-level security protocols can prevent installation of rogue modules that may be used to collect proprietary control data or interfere with control processes.