Automation Network, Access Service Proxy for an Automation Network and Method for Transmitting Operating Data Between a Programmable Controller and a Remote Computer
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Accused Products
Abstract
There is described an automation network, an access service proxy for an automation network and a method for transmitting operating data between a programmable controller and a remote computer, wherein the operating data of the programmable controller can be transmitted via the Internet or an intranet by means of the HTTP protocol and displayed and/or modified on the remote computer by an Internet browser. The access service proxy here contains a server for supplying the web pages containing the operating data of the programmable controller to the Internet browser of the remote computer, an interface, to which an engineering system can be connected so that operating data of the programmable controller can be transmitted using a communication mechanism for automation-engineering field communication via the connection between access service proxy and engineering system, and a synchronization unit for updating the content of the web pages if the operating data is modified by the engineering system. This provides uniform access to the operating data of the programmable controller and consequently data consistency and security against unauthorized access.
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Citations
25 Claims
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1-7. -7. (canceled)
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8. An automation network, comprising:
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at least one programmable controller; at least one remote computer, wherein operating data of the programmable controller are transmitted via an Internet or an intranet based upon a Hypertext Transfer Protocol and displayed and/or modified on the remote computer by an Internet browser; an access service proxy, the access service proxy has a server for supplying the web pages containing the operating data of the programmable controller to the Internet browser of the remote computer, an interface, to connect an engineering system such that operating data of the programmable controller can be transmitted using a communication mechanism for automation-engineering field communication via the connection between access service proxy and engineering system; and a synchronization unit for updating the content of the web pages if the operating data is modified by the engineering system. - View Dependent Claims (9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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21. An access service proxy for an automation network, comprising:
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a connection to the automation network, wherein the network has at least one programmable controller and at least one remote computer, wherein operating data of the programmable controller are transmitted via an Internet or an intranet based upon a Hypertext Transfer Protocol and displayed and/or modified on the remote computer by an Internet browser; a server for supplying the web pages containing the operating data of the programmable controller to the Internet browser of the remote computer, with an interface, to which an engineering system can be connected such that operating data of the programmable controller is transmittable using a communication mechanism for automation-engineering field communication via the connection between access service proxy and engineering system; and a synchronization unit for updating the content of the web pages if the operating data is modified by the engineering system.
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22. A method for transmitting operating data between a programmable controller and a remote computer, comprising:
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transmitting operating data of the programmable controller via the Internet or an intranet based upon a Hypertext Transfer Protocol to the remote computer; providing an access service proxy, wherein the access service proxy has a server for supplying the web pages containing the operating data of the programmable controller to an Internet browser of the remote computer, an interface, to which an engineering system is connectable so that operating data of the programmable controller is transmittable using a communication mechanism for automation-engineering field communication via the connection between access service proxy and the engineering system; and providing a synchronization unit for updating the contents of the web pages if the operating data is modified by the engineering system. - View Dependent Claims (23, 24, 25)
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Specification