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Access enabler ae and method thereof for enabling access to an intelligent electronic device ied of an industrial automation and control system iacs

A technology of intelligent electronic devices and industrial automation, which is applied in transmission systems, digital transmission systems, safety communication devices, etc., and can solve problems such as implementation troubles

Active Publication Date: 2018-09-11
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above implies that presenting user credentials in industrial protection and control devices is not necessarily feasible or cumbersome to implement.

Method used

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  • Access enabler ae and method thereof for enabling access to an intelligent electronic device ied of an industrial automation and control system iacs
  • Access enabler ae and method thereof for enabling access to an intelligent electronic device ied of an industrial automation and control system iacs
  • Access enabler ae and method thereof for enabling access to an intelligent electronic device ied of an industrial automation and control system iacs

Examples

Experimental program
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Embodiment Construction

[0019] figure 1 The steps of the central user account management process of the substation automation SA system according to the present invention are shown.

[0020] In a first step, the user authenticates himself with his credentials and selected role in the Access Enabler AE application running on a special workstation or substation PC. After authentication, the user selects one or more intelligent electronic devices IED of the SA system. The AE and the user establish at least one session key suitable for subsequent access to the selected IED.

[0021] In a second step, the AE transmits the user credentials and the negotiated session key(s) to the selected IED in a secure manner, eg via SSL.

[0022] In a third step, the user physically moves to the IED and enters a session key at the local Human Machine Interface LHMI to access the IED.

[0023] figure 2 A login sequence diagram according to a variant of the invention is shown. The AE application remotely logs into t...

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PUM

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Abstract

The present invention provides a solution for simplified user access to an IED in an IEC 62351‑8 compliant industrial or utility operating environment, in particular to an IED having a LHMI with a restricted set of IED keys. The central access enabler assigns a short and temporary session key to the previously authenticated user and at the same time forwards the session key to the IED for subsequent local user authentication by the IED. A user session at the IED is remotely initiated by an access enabler, where the IED screen is momentarily locked by a session key.

Description

technical field [0001] The present invention relates to central user account management in industrial automation and control systems, in particular process control and substation automation systems. Background technique [0002] Substation automation systems supervise, protect and control substations in high and medium voltage power networks by means of intelligent electronic devices or protection and control devices assigned to the substation's bays and / or primary equipment. These devices repeatedly need to be accessed by various users, such as commissioning or maintenance engineers. With the advent of cybersecurity requirements and cybersecurity standards, in particular IEC 62351-8, the principles of central user account management, including provision of user credentials to users, have become critical for utilities. In this context, user credentials include IEC 62351-8 role information defining access rights to the device. User credentials may include a username / passwor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L29/06G06F21/31
CPCG06F21/31G06F2221/2115H04L63/062H04L9/083H04L9/088Y04S40/20G06F21/41H04L9/3226H04L9/3268H04L9/3271
Inventor F.阿瓦雷兹F.霍尔鲍姆M.穆里
Owner HITACHI ENERGY SWITZERLAND AG