Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 246)

L-force | PLC Designer
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244 DMS 4.1 EN 03/2011 TD29
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12.7.6 Execution Order
Send To Front
Symbol:
This command (category CFC) effects that all selected elements will be moved to the
front of the execution order. Thereby the order within the group of selected as well as
of the unselected elements is maintained.
By default the command is part of submenu "Execution Order" in the CFC menu.
Send To Back
Symbol:
This command (category CFC) effects that all selected elements will be moved to the
end of the execution order. Thereby the order within the group of selected as well as of
the unselected elements is maintained.
By default the command is part of submenu "Execution Order" in the CFC menu.
Move Up
Symbol:
The Move Up command (category CFC) effects that all selected elements - with the
exception of the element which is at the beginning of the execution order - are moved
one place forwards in the internal processing list.
By default the command is part of submenu "Execution Order" in the CFC menu.
Move Down
Symbol:
The Move Down command (category CFC) effects that all selected elements - with the
exception of the element which is at the beginning of the execution order - are moved
one place backwards in the internal processing list.
By default the command is part of submenu "Execution Order" in the CFC menu.
Order By Data Flow
This command (category CFC) per default is part of submenu "Execution Order" in the
CFC menu. It effects that the execution order (indicated by the element numbers in the
upper right corner of an element) in the CFC-Editor gets determined by the data flow
of (all) elements and not by their position (topology).
The advantage of the order according to data flow is that an output box, which is
connected to the output pin of a block, immediately will be processed after the block,
which is not always so in case of a topological process flow. A topological order of
processing might deliver another result in some cases than a processing by data flow.
This can be recognized from the above described example.