PLC Programming

5 - Editors in CoDeSys
'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
'Extras' 'View'
Open instance
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.
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 as well as in online mode.
This command corresponds to the 'Project' 'Open instance' command.
It is available in the context menu () or in the 'Extras' menu, if the cursor is positioned on the
name of a function block in a text editor or if the function block box is selected in a graphic editor.
Cutting, Copying, Pasting, and Deleting in FBD
The commands used to 'Cut', 'Copy', 'Paste', and 'Delete' are found under the 'Edit' menu item.
If a line cross is selected(Cursor Position 5) (see 'Cursor positions in FBD'), then the assignments,
jumps, or RETURNS located below the crossed line will be cut, deleted, or copied.
If a POU is selected (Cursor Position 3), then the selected object itself, will be cut, deleted, or copied,
along with all of the branches dependent on the inputs, with the exception of the first (highest position)
branch.
Otherwise, the entire branch located in front of the cursor position will be cut, deleted, or copied.
After copying or cutting, the deleted or copied part is located on the clipboard and can now be pasted,
as desired.
In order to do so, you must first select the pasting point. Valid pasting points include inputs and
outputs.
If a POU has been loaded onto the clipboard (As a reminder: in this case all connected branches
except the first are located together on the clipboard), the first input is connected with the branch
before the pasting point.
Otherwise, the entire branch located in front of the pasting point will be replaced by the contents of the
clipboard.
In each case, the last element pasted is connected to the branch located in front of the pasting point.
CoDeSys V2.3 5-23