Remember that you can't purge anything that is in use, so if you still have an instance of your PLC footprint in the drawing, you'll have to delete it before you see it show up in the 'purgeable' list. Remove only blocks, leave everything else in there.

So, go back to your drawing and run PURGE. This is a relic of the old days, before memory was this plentiful or cheap, and all kinds of creative things were done to keep processing resources open and available: it's much faster and more efficient to use information that's already loaded, rather than navigating to that information, copying it again, deleting what's there, and loading it again. Any subsequent insertions of that block will be made based on the definition in the drawing, rather than the data in the block file. That definition resides in the drawing until you remove it. and then adds all of that data to the drawing's database in the form of a 'block definition'. When you insert any block, the software goes and fetches it from its location. Restart ACADE, then go insert the footprint and see if the added attributes get filled in automatically.ĭid you purge the existing block definition from the drawing before reinsertion?ĪCAD (and hence, ACADE) deal with blocks in the following manner: This would be what I would try if I were you, though - place those attributes into the footprint file, along with the attributes that ACADE wants it to have (like PTAG, etc). But, I can't say if that works for just any attribute. I know that some users have added the RATING1 attribute to their circuit breaker footprints, and that ACADE pushes the value held for that attribute in the schematic, into its correlating footprint. However, if those attributes already exist in the block file, that step is just skipped over. For instance, a terminal will get different attributes than DIN rail. These attribute insertions are controlled by the component family of the schematic symbol.

From there, it will insert what it needs to ensure the footprint's function in the software. When you insert a footprint, ACADE evaluates the block file to see what attributes it contains. Because of this, ACADE by default keeps 'blank' footprints (meaning, no attributes) that will have the proper attributes inserted by the software. What those attributes are, depends on the nature of the component represented by the footprint. In order for a footprint to function normally, it requires certain attributes. Normal footprint insertion behavior in ACADE: The vast majority of footprints don't hold attributes in their block files by design, ACADE inserts those at insertion time.

Autocad electrical panel symbol names