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Inserting parallel (or) branches – Watlow LogicPro User Manual

Page 109

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LogicPro User’s Guide

Chapter 8: Ladder Diagrams

Doc.# 28002-00 Rev 3.00

Watlow Anafaze

93

Figure 8.11 Connecting an Element to a Func-

tion Block’s Output

Figure 8.12 Function Block After Connecting

Output Element

NOTE!

If the Function Block’s first logical input is con-
nected directly from the left power rail without any
element in between, a constant True condition is
applied during the running of the control pro-
gram. However, for the other logical input, if there
is no connection between it and the left power rail,
a constant False condition is applied.

Inserting Parallel (Or) Branches

There are two ways you can add a Ladder element parallel to
an existing element.

To create parallel branches, there must be elements on both
sides of the element you want to parallel. Figure 8.13 on page
94
shows the Ladder diagram before the parallel branch is
added, while Figure 8.14 on page 94 shows the Ladder
diagram after the branch is added.

1.

From the toolbar, select the element type you want to
add.