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LogicPro User’s Guide Chapter 7: Sequential Function Charts

Doc.# 28002-00 Rev 3.00 Watlow Anafaze 75

Parallel (AND) and Single (OR) Transitions

To toggle between parallel and single Transitions, using the

[Simultaneous Transition] tool, double-click near the

directed link on the opposite side of the double horizontal line

from the Transition.

Parallel horizontal lines indicate that steps occur in parallel.

For example, in the SFC as illustrated in Figure 7.2, both

Steps 2 and 3 will execute in parallel once condition 1 is met.

Figure 7.2 Parallel and / or Single Transitions

A single horizontal line indicates that only one step executes.

For example, in Figure 7.3, either Step 2 or Step 3 will

become active depending on whether condition 1 or condition

2 becomes true. In case both Transition conditions become

true at the same time, Step 2 will become active because logic

is executed top to bottom, left to right.

Figure 7.3 Simultaneous Transition

Conditions

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 295 296

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Watlow LogicPro Manuel d'utilisateur Page 91