PSC PT Program Generator, Руководство пользователя

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Flow Chart Levels
User’s Guide
51
1. Select
Create > Frame
from the menubar. A new frame appears in the
lower right corner of the frame window. The new frame is assigned a
default name.
2. To position the frame, point to it, hold down the left mouse button,
and drag the frame with the mouse. When the frame is positioned
where you want it, release the mouse button.
3. To give the frame a more useful name, select
Edit > Properties
from
the menu or select
Properties
from the pop-up menu (point and click
the right mouse button). This opens the
Frame Properties
dialog box.
Figure 30. The Frame/Subroutine Properties Dialog Box
Subroutines
Subroutines, like frames, are nodes that contain program steps. Subroutines
are useful when your program uses the same sequence of nodes in several
frames. Rather than repeating the nodes for each frame, you can put them in a
subroutine and then use a
Call
node to reference the subroutine (refer to
Call
Nodes on page 72
).
If you're creating several frames, you can create a single frame node as described
above. Then select the frame by clicking on it with the left mouse button. Copy the
frame by selecting
Edit > Copy
from the menu. Then select
Edit > Paste
as many
times as necessary to create the number of copies you need.
Name PPG automatically names the item with its type. You can rename or
change the name of the item.
Description This field is optional, but you may wish to complete it to provide yourself
additional information when using similarly named items.
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