Rockwell Automation Logix5000 Logix5000 Controllers Quick Start - Manual (Page 93)

Publication 1756-QS001E-EN-P - October 2009 93
Program a Project Offline Chapter 5
Follow these steps to verify a routine or project.
1. Choose a verify option.
2. Go to an error or warning.
3. Close the Errors tab.
Item Description
Verify Check a routine or project for programming errors or incomplete configuration.
Warning A situation that may prevent the project from executing as expected. RSLogix 5000
software lets you download a project that contains warnings. Warnings include situations
such as duplicate destructive bits and unassigned main routines.
Error A situation that you must correct before you download the project. Errors include situations
such as missing operands or undefined tags.
Duplicate destructive bit detection Determine if other logic (bit instruction, OREF, ST assignment) also clears or sets the value
of a bit that you use in a OTE, ONS, OSF, or OSR instruction. RSLogix 5000 software detects
duplicate destructive bits only if all of the following conditions are met:
• You enable duplicate destructive bit detection. (It’s off by default.)
• You use the bit in a ladder logic OTE, ONS, OSF, or OSR instruction.
• Another logic element such as a bit instruction, OREF, or ST assignment also
references that same bit and can change its value.
If you do not use a bit in an OTE, ONS, OSF, or OSR instruction, the software does not detect
any duplicate destructive bits, even if they exist.
By default, duplicate destructive bit detection is turned off.
To go to Click this
Verify routine in view
Verify entire project
To go to Do this
Specific error or warning Double-click the error or warning.
Cycle through the list of errors and
warnings Press [F4].