Roman, as per my e-mails with Maxim, it is not my intention to change your word sense or meaning. Since I speak no Russian, I am using both the original English Translation, Google's Russian to English translation of the Russian site couple with my own understanding of SCADA systems to come up with a wording I believe conveys the your thoughts. At any time you may, and I expect, you to tell me when my choices are incorrect. If we all understand that my intent is only to help we should be able to arrived at a more accurate English translation.