Lenze DDS v2.3 - Manual (Page 161)

Drive PLC Developer Studio
Editors
7-39
l
DDS EN 2.3
In other words, programming of a network in the LD editor as in FBD merely requires prior insertion
of an EN operator into a new network before further-developing it as in the FBD editor. A network
developed like this acts like the associated network in FBD.
7.6.3.1 Operator with EN
Icon: - Menu: InsertWOperator with EN Keyboard: -
Use this command to insert an operator with EN input.
•
The selected position must be the connection between contacts and coils or a coil.
The new operator is inserted in parallel to the coils below the selected one and is always an AND.
•
This can be changed to any other operator by selecting and overwriting the text.
•
Use the Help Manager ( <F2>) to select the required operator from the list of supported
operators.
7.6.4 Commands in the “Extras” menu
7.6.4.1 Paste after
Icon: - Menu: ExtrasWPaste after Keyboard: -
Use this command to paste the contents of the clipboard as serial contact behind the selected
position.
•
This command can only be used if the contents of the clipboard and the selected position are
contact networks.
7.6.4.2 Paste below
Icon: - Menu: ExtrasWPaste below Keyboard: <Ctrl>+<U>
Use this command to paste the contents of the clipboard as parallel contact below the selected
position.
•
This command can only be used if the contents of the clipboard and the selected position are
contact networks.
7.6.4.3 Paste above
Icon: - Menu: ExtrasWPaste above Keyboard: -
Use this command to paste the contents of the clipboard as parallel contact above the selected
position.
•
This command can only be used if the contents of the clipboard and the selected position are
contact networks.
7.6.4.4 Negation
Icon: Menu: Extras WNegation Keyboard: <Ctrl>+<N>
Use this command to negate a contact, coil, jump/RETURN instruction or an input or output of an EN
organization unit at the current cursor position.
•
A slash appears between the parentheses of a coil or the straight lines of a contact: (/) or |/|
•
As in the FBD editor, jumps, returns, inputs and outputs of EN organization units are identified
with a small circle in the connection.
The coil now writes the negated value of the input connection to the associated Boolean variable.
•
A negated contact switches the status of the input to the output exactly when the associated
Boolean variable returns the value FALSE .
•
If a jump or return is highlighted, the input of the jump or return will be negated.
A negation can be deleted by another negation.
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