Chapter 14 Sequential Function Chart (2) Select an action in an Associate Action drop-down list cell in the Action Setting s window. (3) After an action is selected, users have to select a qualifier in the Qualify drop-down list cell for the action. If the qualifier selected is related to time, the users have to type a time interval in the Time (sec) cell for the qualifier. A second is a measurement unit of a time interval. Besides, the users can only type an integer. (The users can not qualify the actions in the program in a DVP series PLC.) (4) If the users want to make comments on the step, they can type the comments in the box at the lower part of the window.
(5) After the users right-click an item on the list, they can click Add , Insert , Delete , or Select All on the context menu. When there are more than one action that needed to be selected, users can hold the Control button on the keyboard and simultaneously use the mouse to click and select the actions. Users can also hold the Shift button on the keyboard and simultaneously use the mouse to click the first action needed and the last action needed to set the selection range. 14-45 Item Function