Mechatronic locking apparatus

A mechatronic locking apparatus comprising:

• a lock cylinder comprising a cylinder control circuit;
• an associated security key comprising:
• a first communication path;
• a key control circuit for storing and processing access data and from which information signals can be transmitted to the cylinder control circuit via the first communication path, and
• at least a second communication path for the purpose of storing and/or processing access data, wherein the first and second communication paths are connected to said key control circuit of the security key,
• wherein the access data can be written, read and changed both via the first communication path and via the second communication path,
• wherein the security key comprises electrical contact elements and the rotary lock cylinder comprises electrical contact elements, said first communication path formed by a signal line directly connecting said key control circuit to said electrical contact elements providing the first communication path, wherein said electrical contact elements of the security key are in contact with electrical contact elements of the rotary lock cylinder, to allow signal transmission between the key control circuit and the lock control circuit, when the key is inserted into a keyway in the lock cylinder, and
• wherein the second communication path comprises a signal line directly connecting a transponder to said key control circuit.