In the review of the mechanisms below, the following objects will be involved:
- "ObjectSCADA" — any object of the SCADA-system, which refers to the value of the signal, such as archives and visualizers;
- "DAQParamAttribute" — parameter attribute of the subsystem "Data acquisition", which is an intermediary for access to the value of the data source signal;
- "DAQParamAttributeArch" — object of the attribute's archive;
- "HardwarePLC" — data source object, for example, modules of the allocated MOD or industrial PLC.