Automation system (10) comprising: at least one decentralized security device (30, 40) having a network interface (37, 47), a controllable device (50) having a network interface (56) and a communication network (20) via which the at least one decentralized security device (30, 40) and the controllable device (50) are interconnected, wherein the controllable device (50) is adapted to detect a predetermined event and in response to the detected event the at least one decentralized security device (30, 40 ) to execute a self-test algorithm associated with the detected event, the at least one decentralized safety device (30, 40) having an evaluation and control unit (33) designed to control the detected event under the control of the controllable device (50) executed self-test algorithm lead is formed, wherein said control-capable device (50) to, in response to the detected event on the corresponding self-test algorithm from a memory device (53; 60) in which a plurality of self-test algorithms, in particular a complete and a truncated self-test algorithm are stored, and to cause the transmission of the selected self-test algorithm to the at least one decentralized safety device (30, 40) for execution.
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