The CKS from Euchner is an electronic key system based on transponder technology. It consists of a uniquely coded key and a key adapter with integrated evaluation. The 'CKS...AS' is used, for example, as an electronic locking insert, as a key transfer system or for assigning operating mode authorizations. For operation on the AS-i safety bus, the Electronic-Key system is integrated directly as a slave. When a valid key is inserted, a safe code sequence is sent directly to the safety monitor via the bus. Depending on the program stored in the monitor, the safety outputs are switched, for example, and a system can be started. Thanks to the transponder technology, the key system achieves the highest safety level category 4/ PL e. This means it can be used in any system for any application. It is designed in protection class IP67.