Using the Library Navigator
location of a library element is indicated by the
prefix of the element's name in the Library Navigator:
pane shown in the figure below
enables you to use the contents of both the on-line Web
of Holobloc Inc and of your local file library (located in
folder of your local FBDK directory, e.g.,
C:\Documents and Settings\Jim\fbdk2\src\
in Windows™ operating systems).
type of a library element is indicated by its icon in
the Library Navigator:
">" prefix indicates that the element is
located in the Web library; for example, the
FB type in the figure below.
"+" prefix indicates that the element is
located in the Web library and also has a copy (whose contents may be
different from the Web library element) in the local file system; for
X2Y2 FB type in the figure below.
- An element name with no prefix exists only in the local file
system; for example, the
NewBasic FB type in the figure
Operations that can be performed in the Library
||FB (Function Block) Type
||IEC 61131-3 Function Type
||(Network) Segment Type
- Selection - i.e., clicking on an element,
for instance, the
X2Y2 FB type in the example below -
will cause the selection of the corresponding tab (if it exists) in
area to the right of the Library Navigator.
- Selection of a tab in the Editor area will also select the
corresponding element in the Library Navigator ("two-way
synchronization") if an element with the tab name is currently in
- Double-clicking an element in the Library
Navigator will open it for editing in a tab of the Editor area.
- If the element is already open in a tab, this will just
select the existing tab.
- Deletion of an element in the local library
can be done from its pop-up menu in the Library Navigator.
- An element in the Web library cannot be deleted, but its
local copy may. This will cause the element's prefix in the Library
Navigator to change from
- The menu will not pop up unless the element is in the local
library and is not open in a tab of the Editor area.
and Drop (DnD) can be used to add a graphical
element to a diagram in the Editor area by dragging from its type
element in the Library Navigator and dropping on the desired location
in the diagram.
- Dropping of a graphical element is only allowed when it is
consistent with the IEC 61499 information model; for example, an
instance of a
Device type can be dropped into a
diagram, but not into a diagram of the contents of a
- When feasible, dropping the element on the diagram will
open a dialog in which you can specify a name and comment for the
- DnD can also be used to change the type of
a graphical element by dropping on the instance name that appears
above the block outline (the name acts as a "handle" for
manipulating the block). This operation is only allowed when:
- both the instance name and body of the element are the
same (non-white) color, indicating that the element is editable;
- the new type is the same kind of Library Element as the
old type, e.g., a Function Block type cannot be dropped on a
- the interface of the new type is a proper superset of the
interface of the old type, i.e., it contains at least all of the
interface declarations of the old type.
Last updated: 2013-10-22.
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