1756-PM003H-EN-E, SFC and ST Programming Languages ...
1756-PM003H-EN-E, SFC and ST Programming Languages ...
1756-PM003H-EN-E, SFC and ST Programming Languages ...
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Design a Sequential Function Chart 4-49<br />
Figure 4.9 Options for Execution Control<br />
This…<br />
step_1<br />
step_2<br />
tran_1<br />
tran_2<br />
…executes like this<br />
Execute current active steps only<br />
Execute until FALSE transition<br />
step_1<br />
step_1<br />
tran_1<br />
false<br />
return to<br />
OS/JSR<br />
tran_1<br />
false<br />
return to<br />
OS/JSR<br />
true<br />
true<br />
return to<br />
step_1<br />
step_1<br />
last scan<br />
step_2<br />
step_2<br />
tran_2<br />
false<br />
return to<br />
OS/JSR<br />
tran_2<br />
false<br />
return to<br />
OS/JSR<br />
true<br />
true<br />
return to<br />
OS/JSR<br />
step_2<br />
step_2<br />
last scan<br />
Publication <strong>1756</strong>-<strong>PM003H</strong>-<strong>EN</strong>-E (excerpt from <strong>1756</strong>-PM001H-<strong>EN</strong>-P) - August 2005