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Start a pending edit – Rockwell Automation Logix5000 Logix5000 Controllers Quick Start User Manual

Page 121

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Publication 1756-QS001E-EN-P - October 2009

121

Program a Project Online Chapter 8

Start a Pending Edit

1. For relay ladder, click (select) the rung that you want to edit.

2. Start a pending edit.

Relay ladder

Test edits

When you accept your pending edits, the software downloads them to the
controller and marks them as test edits but the controller continues to execute the
original logic. You then manually switch execution to the test edits or back to the
original logic (test and untest the edits).

In relay ladder, if you delete a rung the software immediately marks it as a test
edit (upper-case 'D' character).

Function block
Structured text
SFC

This marker

Means

Description

- or -

If you

Then

Test the edits

• Execution switches to the test edits (all test edits

execute).

• Outputs in the original logic stay in their last state

unless executed by the test edits (or other logic).

• In an SFC, the chart resets to the initial step and

stored actions turn off.

Untest the edits

• Execution switches back to the original logic.
• Outputs in the test edits stay in their last state

unless executed by the original logic (or other
logic).

• In an SFC, the chart resets to the initial step and

stored actions turn off.

Relay Ladder

Function Block, Structured Text, SFC

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