Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 572)

L-force | PLC Designer
General Editors
570 DMS 4.1 EN 03/2011 TD29
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Select the Add tappet tool of the toolbox to add a new tappet action. You can indicate
its appropriate position by a click on the left mouse button within the desired track.
The new tappet will be inserted and instead of the Add tappet tool and now the Select
tool will automatically be activated. After selecting a tappet by a click in its center you
may move the tappet while keeping the mouse button pressed or delete the tappet
event by pressing the delete key.
You can assign different events ("switch on", "switch off", "invert", "none") to the pass
of a tappet in either positive (ascending master values) or negative direction. Have a
look at the table beyond for all possible combinations. All attributes of tappets of one
track, that is of the same identification number, refer to the same tappet bit, that is a
variable of boolean type. By default, a cam has the attributes "switch on" on positive
pass and "switch off" on negative pass , so that the boolean variable will be set to
TRUE on positive pass and set to FALSE on negative pass. The event "invert" will negate
the value of the boolean variable, whereas "none" has no impact at all. You may
change the attributes of the cam each by a click on the related end of the cross to
turn it on or off.