The way of acquiring data from a specific system depends on the control vendor and the provided interfaces. One possible approach is to gather the necessary data from the programmable logic controller (PLC) of the control system. A data management framework based on this was introduced in [11]. With this flexible system the data can be gathered from different sources and with different formats. By using this framework it is not necessary to create special software for each PLC, however a program change at the PLC is still necessary.