From OpenSCADAWiki
On this mnemonic scheme through our complex elements we can not only observe, but also control productivity the coolers simply by changing the value in the combo box. Changing performance we can notice the change in temperature and signalling on the complex analog parameter of the object-trend. We can see and review the history of changes on the graphics group we created in Section 5.1 and the document "Protocol of violations" mentioned in Section 5.2.