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IEVref:351-44-05ID:
Language:enStatus: Standard
Term: direction of action
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Definition: direction of the action path in a functional diagram

Note 1 to entry: In a functional block the direction of action goes from the input of the block to its output (see Figures 1 and 2).

Note 2 to entry: The direction of action needs not be the same as the direction of mass or energy flow.

Note 3 to entry: This entry was numbered 351-23-05 in IEC 60050-351:2006.

Figure 1 – Functional diagram indicating typical elements of an elementary open-loop control system

Figure 2 – Functional diagram indicating typical elements of an elementary closed-loop control system


Publication date:2013-11
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