Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 303)

L-force | PLC Designer
Editors in PLC Designer
DMS 3.2 EN 02/2011 TD29 301
'Extras' 'Negate
Symbol: Shortcut: +
With this command you can negate the inputs, outputs, jumps, or RETURN
instructions. The symbol for the negation is a small circle at a connection.
If an input is selected (Cursor Position 2) (see 'Cursor positions in FBD'), then this input
will be negated.
If an output is selected (Cursor Position 4), then this output will be negated.
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'
Symbol:
With this command you can define outputs as Set or Reset Outputs. A grid with Set
Output is displayed with [S], and a grid with Reset Output is displayed with [R].
Set/Reset Outputs in FBD
An Output Set is set to TRUE, if the grid belonging to it returns TRUE. The output now
maintains this value, even if the grid jumps back to FALSE.
An Output Reset is set to FALSE, if the grid belonging to it returns FALSE. The output
maintains its value, even if the grid jumps back to FALSE.
With multiple executions of the command, the output will alternate between set,
reset, and normal output.
'Extras' 'View'
Using this command for a POU created in the FBD-Editor you can choose, whether it
should be displayed in the LD- (ladder logic) or in the FBD-Editor (Function block
diagram). This is possible in offline as well as in online mode.