Method for providing safety functions
AssigneePhoenix Contact GmbH & Co. KG
InventorSteffen Horn
Life of this patent
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Abstract
The present invention relates to a method for safely providing safety functions for safety devices of an automation system. For this purpose, modular safety components are introduced, comprising a logic module (A, B, . . . , X), an address-dependent parameter module (1, 2, . . . , n), and failsafe information. The modules are stored separately with recovery information. After turning on a safety device in an automation system, a safety component created for a specific device can be restored and transmitted to the safety device, wherein the accuracy of the safety component is checked in the safety device.
Claims12
A method for the computerized provision of modular safety components for a plurality of uniquely addressable safety devices (10, 11, 12, 20, 21, 30, 31, 32) for achieving safety functions in a network (200) of an automation system, wherein a modular safety component contains a combination of an address-independent logic module (A, B, . . . , X), an address-dependent parameter module (1, 2, . . . n) and failsafe information calculated via both modules, the method comprising:
- a) creating a plurality of safety components;
- b) storing a plurality of safety components, wherein the modules and the failsafe information are stored individually, and wherein for each safety components, recovery information is stored;
- c) after connecting a safety device to the automation system, restoring and transmitting to the safety device the safety component created for the safety device by means of the recovery information from the associated logic and parameter modules as well as the associated failsafe information;
- and
- d) checking for accuracy of the transmitted safety component in the safety device by means of the associated failsafe information.
An automation system, comprising a network (200) consisting of a plurality of uniquely addressable safety devices (10, 11, 12, 20, 21, 30, 31, 32) and a plurality of modular safety components,
- wherein the plurality of modular safety components corresponds to the plurality of the uniquely addressable safety devices, and
- wherein a modular safety component contains a combination of an address-independent logic module (A, B, . . . , X), an address-dependent parameter module (1, 2, . . . , n) and failsafe information calculated via both modules, and
- wherein the logic and parameter modules as well as the failsafe information of the respective safety components are stored together with recovery information in a storage in such a manner that after connecting a safety device, a safety component created for this respective safety device can be restored by means of the recovery information from the associated logic and parameter modules as well as the associated failsafe information from the storage and can be transmitted to the safety device, and the accuracy of the transmitted modular safety component in the safety device can be checked by means of the associated failsafe information.
Dependencies are inferred from the claim text.