Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 701)

L-force | PLC Designer
General Editors
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DMS 4.1 EN 03/2011 TD29 699
Label
Each FBD / LD or IL network below the network comment field has a text input field for
defining a label (see command Insert label). The label is an optional identifier for the
network and can be addressed when defining a jump. It can consist of any sequence of
characters.
Abb. 378 Position of the label in a network
See the 'FBD, LD, IL Editor Options dialog for defining the display of comment and title.
Boxes in FBD/LD/IL
A box, insertable in a FBD, LD or IL network, is a complex element and can represent
additional functions like eg. Timers, Counters, arithmetic operations or also programs,
IEC functions and IEC function blocks.
A box can have any desired inputs and outputs and can be provided by a system library
or be programmed by the user. At least one input and one output however must be
assigned to Boolean values.
If provided with the respective module and if option Show box icon is activated, an
icon will be displayed within the box.
Use in FBD, LD:
A box can be positioned in the left part of a LD network (like a contact) resp. in a FBD
network by using command Insert Box, Insert Empty Box. Alternatively it can be
inserted from the toolbox or copied or moved within the editor via drag&drop. Please
see Insert Box the details.
Use in IL:
In an IL program a CAL instruction with parameters will be inserted in order to
represent a box element.
An update of the box parameters (inputs, outputs) - in case the box interface has been
changed - in the current implementation can be done without having to re-insert the
box by the 'Update parameters' command.