Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 64)

L-force | PLC Designer
What is What in PLC Designer
62 DMS 3.2 EN 02/2011 TD29

Action
An action can contain a series of instructions in IL or in ST, a lot of networks in FBD or
in LD, or again in Sequential Function Chart (SFC).
With the simplified steps an action is always connected to a step. In order to edit an
action, click twice with the mouse on the step to which the action belongs. Or select
the step and select the menu command 'Extras' 'Zoom Action/Transition'. In addition,
one input or output action per step is possible.
Actions of IEC steps hang in the Object Organizer directly under their SFC-POU and are
loaded with a doubleclick or by pressing <Enter> in their editor. New actions can be
created with 'Project' 'Add Action'. You can assign max. nine actions to one IEC step.
Entry or exit action
Additional to a step action you can add an entry action and an exit action to a step. An
entry action is executed only once, right after the step has become active. An exit
action is executed only once before the step is deactivated.
A step with entry action is indicated by an "E" in the lower left corner, the exit action
by an "X" in the lower right corner.
The entry and exit action can be implemented in any language. In order to edit an
entry or exit action, doubleclick in the corresponding corner in the step with the
mouse.
Example of a step with entry and exit action: