Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 314)

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

'Extras' 'Paste below'in LD
Use this command in the LD editor to insert the contents of the clipboard as parallel
contact below the marked position. This command is only possible if the contents of
the clipboard and the marked position are networks comprised of contacts.
'Extras' 'Paste above' in LD
Use this command in the LD editor to insert the contents of the clipboard as parallel
contact above the marked position. This command is only possible if the contents of
the clipboard and the marked position are networks comprised of contacts.
'Extras' 'Negate' in LD
Symbol: Shortcut: <Ctrl>+<N>
Use this command to negate a contact, a coil, a jump or return instruction, or an input
or output of EN POUs at the present cursor position .
Between the parentheses of the coil or between the straight lines of the contact, a
slash will appear ((/) or |/|). If there are jumps, returns, or inputs or outputs of EN
POUs, a small circle will appear at the connection, just as in the FBD editor.
The coil now writes the negated value of the input connection in the respective
Boolean variable. Right at this moment, a negated contact switches the status of the
input to the output, if the respective Boolean variable carries the value FALSE.
If a jump or a return is marked, then the input of this jump or return will be negated.
A negation can be canceled through renewed negation.
'Extras' 'Set/Reset' in LD
Symbol:
If you execute this command on a coil, then you will receive a Set Coil. Such a coil
never overwrites the value TRUE in the respective Boolean variable. This means that
once you have set the value of this variable to TRUE, it will always remain at TRUE. A
Set Coil is designated with an "S" in the coil symbol.
If you execute this command once again, then you will be given a Reset coil. Such a
coil never overwrites the value FALSE in the respective Boolean variable. This means
that once you have set the value of this variable to FALSE, it will always remain at
FALSE. A Reset Coil is designated with an "R" in the coil symbol.
If you execute this command repeatedly, the coil will alternate between set, reset and
normal coil.