The Mark/Verify tool can help you track changes made to a project drawing set during any phase in the engineering process. Before you send your drawings out for review, use the Mark option. Each AutoCAD Electrical component, wire number, and beginning ladder reference is invisibly marked and referenced in a table in the scratch database file of the current project. When the drawings are returned, you can use the Verify option to generate a report of changes. The report includes a list of all added, changed, copied, and deleted components and wire numbers. Changes made using AutoCAD, AutoCAD LT, or AutoCAD Electrical are all detected.
For AutoCAD Electrical to detect if a component or wire number is deleted, it must reference the MARKVERIFY table that is saved in the database file of the project. If the project database file is erased after the Mark option is run, then a subsequent Verify command cannot report deleted items since it is limited to reporting only changes involving new inserts, copies, and edited components and wire numbers.
The Verify command detects and reports changes to the following:
Component TAG name (such as CR101 changed to CR101A)
Description text
Switch position text, rating values
Beginning PLC module address value
Terminal pin numbers (both stand-alone terminals and component pin numbers)
Catalog number, manufacturer, assembly code value
Location/Installation code values
Wire numbers
Beginning ladder reference number
Wire Source/Destination codes
Deleted items - Project database maintained
Track changes made to a drawing set
Use this tool to insert comments in your drawings before sending them for review. Once the drawings are returned to you, run this tool again to see any changes that were made to the drawing set.

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Include non-AutoCAD Electrical blocks to mark all blocks even if they do not carry AutoCAD Electrical intelligence.
Select Include wires/lines to detect changes to any lines or wires in the drawings.
Invisible flags are placed on the wire numbers and component tags. These flags do not change the appearance or functioning of the drawings. However, they may increase the drawing size by a small amount.
A list of the detected changes is displayed in a report dialog box.
Marks drawings to track changes. Verifies drawings to report changes.
Toolbar: Project
Command entry: AEMARKVERIFYCreates a list of changes made after the drawings are marked. The report includes added, changed, copied, and deleted components or wire numbers. Detects changes made using AutoCAD, AutoCAD LT, or AutoCAD Electrical.
This tool places invisible data on each component to track additions and modifications. Information is written to the project database file to check for deleted components. Your drawings must be named and part of the active project to use this command.
This command writes information to the project database file that is used to check for deleted components. Your drawings must be named and part of the active project to use this command.
Mark/verify drawing or project | Specifies to mark or verify the active drawing or process all drawings in the current project. |
Mark | Places invisible information on all AutoCAD Electrical components including blocks not created in AutoCAD Electrical, lines, and wires. |
Verify | Generates a list of changes since the drawings were marked. |
Remove | Removes all invisible mark data. |
Previous | Redisplays the last check mark exception report. |
Surf | Continues surfing on exceptions generated the last time the mark/verify command was used. |
Current drawing statistics | Displays any mark data found on the drawing. |