Rockwell-automation T8019 Trusted Process Control Algorithm Software P Manual de usuario descargar pdf (Pagina 21)

Trusted

Process Control Algorithms T8019

Issue 8 Sep 07 PD-T8019 21

Example:

T_AVG

OUT

250ms

20ms

T (ms) 350 390 432 475 521 565 607 650 690 732 777 821

PV 23.5 15.46 10.01 56.03 58.61 90.17 85.68 84.56 18.09 95.94 75.66 49.38

Ts (ms) 46 40 42 43 46 44 42 43 40 42 45 44

% of Tp 103.2 102.4 101.6 102.8 102.8 104.4 102.8 104.0 103.2 102.8 102.4 102.4

OUT 23.5022.87 21.09 22.71 28.76 37.26 48.00 58.53 64.87 68.91 73.96 71.92

Table 3 Example Time Average

The example assumes that PV has been static at 23.5 for greater than 250 ms before the first sample

shown. The Ts row shows the actual interval between samples. The % of Tp row shows the figure

used for the overall output adjustment; e.g., the actual period between the 521ms and 777ms iterations

is 256ms, i.e. 102.4% of Tp.

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27 28

Sin comentarios

Rockwell-automation T8019 Trusted Process Control Algorithm Software P Manual de usuario Pagina 21