| place value within a ranking order that determines at the moment of decision which action is to be performed next, when several actions are requested simultaneously Note 1 to entry: The most important control functions acting on a process usually get the following sequence of priorities. | Required control function | Priority | | safeguarding | 1 | | intervention | 2 | | open-loop control | 3 | | closed-loop control | 4 | | optimizing | 5 |
In this table the control function with the lower number has the higher priority. Note 2 to entry: This entry was numbered 351-31-07 in IEC 60050-351:2006.
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