Is there a way to add Attributes to the autocad blocks so they will update from the datamatrix. Examples: Add "type, and length" to the rough-in wire block. The reason for this is to use the attribute extraction feature in Autocad.
The "Type" attribute can be added but I don't think that the "Wire Length" is an available attribute at this point in time. To add the "Type" attribute, follow the instructions in the SI 5 User's Guide in the AutoCAD section, sub-section "Right-Click->D-Tools->Shape->Link To D-Tools". There is an example there of creating your own custom block and adding attributes.