For the purpose of visual perception and affordable system architecture OpenSCADA generally in Figure 1. shows a static class diagram of OpenSCADA universal modeling language (UML). Based on the chart shows that the system contains a modular subsystem OpenSCADA: «Archives», «Databases», «Shuttle», «Transport protocols», «User interfaces», «Data collection» and «Special», as well as subsystems: «Safety» and «Module». The chart graphically presents the relationship between modular subsystems and modules of the types.