| output variable of the controlled system that will be acted upon by one or more manipulated variables SEE: Figures 1 and 2. Note 1 to entry: This entry was numbered 351-27-01 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
|