Watlow LogicPro - Manual (Page 99)

LogicPro User’s Guide Chapter 8: Ladder Diagrams
Doc.# 28002-00 Rev 3.00 Watlow Anafaze 83
Selector
Use the [Selector] tool to select an element within a Ladder
program. Once selected you can move, edit, delete or assign
Variable names to it.
To use the Selector:
1. Select the [Selector] tool.
Select any element in the program by clicking once on it. This
will cause handles to appear showing that it is selected.
Clicking twice on it causes the
Variables dialog box to
appear.
Figure 8.1 illustrates an element without handles.
Figure 8.1 Element without Handles
Figure 8.2 shows a selected element with handles.
Figure 8.2 Selected Element with Handles
Normally Open Contact
The [No Contact] tool enables you to insert normally open
contacts into the program window.
During a single evaluation of the Ladder diagram, if the
Variable associated with this contact is True, then the contact
will close. Thus allowing power to pass to the next element on
the rung. If the associated Variable is False, the contact
remains in the Open state.