Abstract: A system for monitoring an entry-restricted danger zone of an industrial plant, wherein a machine is arranged inside the entry-restricted danger zone, the system comprising: a safety control apparatus to control operation of the machine in a fail-safe manner; an entry portal to enable a person to enter and exit the danger zone; an entry control apparatus to authenticate entry of authorized persons, the entry portal being assigned to the entry control apparatus; and a login controller to log information about a current entry event of the entry-restricted danger zone and about historical entry events of the entry-restricted danger zone, wherein the safety control apparatus is configured to generate, upon request of an authenticated, entry-authorized person, a switch-off signal for a fail-safe shutdown of the machine and to prevent a restart of the machine while at least one person is still present inside the entry-restricted danger zone.

Abstract: The invention relates to a method for operating an automation system of a machine or an installation, wherein the automation system comprises an automation device (16). The automation device (16) is accessed by a client (10) via a server (18), wherein address information for the access operations is provided by the server (18) in an address space in the form of data objects that are organized in the form of nodes of a meshed network in an information model of the server (18). Depending on a technical task to be performed, the client (10), by calling a functionality offered by the server (18), generates data objects on the server (18) that allow the client (10) to perform those access operations to the automation device (16) and/or to at least one field device (22) networked with the server (18) via a fieldbus (20) that are necessary to achieve the technical task.