MES systems combine an industrial control system with a business system for optimisation of production, improvement in the quality, planning maintenance etc. Our company offers integration of the mentioned functionalities on the basis of the Rockwell Automation System, together with supplied components. To the created standard software we add our own solutions, based on SQL and our own plugins (e.g. ActiveX), written in C++/C#. Our systems enable to create reports and statements for other divisions of a production plant, draft formulas, analyse production history and emergency cases.