Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 292)

L-force | PLC Designer
Editors in PLC Designer
290 DMS 3.2 EN 02/2011 TD29

7.5 The Graphic Editors...
The editors of the graphically oriented languages, sequential function chart SFC,
ladder diagram LD and function block diagram FBD and of free graphic function block
diagrams have many points in common. In the following paragraphs these features
will be summarized; the specific descriptions of LD, FBD an CFC, as well as the
Sequential Function Chart language SFC follow in separate sections. The
implementation in the graphics editors is supported by syntax coloring.
7.5.1 Zoom
Objects such as POUs, actions, transitions etc. in the languages SFC, LD, FBD, CFC and
in visualizations can be enlarged or reduced in size with a zoom function. All elements
of the window contents of the implementation part are affected; the declaration part
remains unchanged.
In standard form, every object is displayed with the zoom level 100%. The zoom level
that is set is saved as an object property in the project.
The printing of project documentation always occurs at the 100% display level!
The zoom level can be set through a selection list in the toolbar. Values between 25%
and 400% can be selected; individual values between 10% and 500% can be entered
manually.
The selection of a zoom level is only available if the cursor rests on an object created in
a graphical language or a visualization object.
Even with the object zoomed, cursor positions in the editors can be further selected
and even reached with the arrow keys. Text size is governed by the zoom factor and
the font size that is set.
The execution of all editor menu features (e.g. inserting a box) as a function of cursor
position is available at all zoom levels, taking the same into account.
In Online mode, each object is displayed according to the zoom level that has been
set; Online functionality is available without restriction.
When the IntelliMouse is used, an object can be enlarged/reduced by pressing the
<CTRL> key and at the same time turning the wheel forward or backwards.
7.5.2 Network
In the LD and FBD editors, the program is arranged in a list of networks. Each network
is designated on the left side by a serial network number and has a structure
consisting of either a logical or an arithmetic expression, a program, function or
function block call, and a jump or a return instruction.