In accordance with the trends putting emphasis on securing cyber-safety of electronic systems we have integrated the OpenVPN device into the Pertionax6 environment. This device is used to create safe interconnection between stations and their surrounding environment in the unreliable (insecured) ethernet network. „The controller creates a virtual private network inside common network that enables safe application of existing communication protocols, e.g. Pernet, IEC 104 etc., and at the same time it secures communication with engineering station with Pertinax6. This security is suitable mainly for topologically large network and nearly necessary in case of remote communication via public network internet,“ says Pavel Kulík, Director of Technical Development Department. The OpenVPN device is accessible from the Pertinax 6.00.035 version.