SLC500 or Compactlogix Conversion to PLC5

Just tried a copy of a few rungs from Rs500 to Rs5 and seemed to work okay.
Give it a try, you have nothing to loose.

Thanks Ken, yes I know that works, you have to be careful with a few instructions though, for example OSR in an SLC500 is not the same as OSR in a PLC5 (the corresponding instruction there is ONS for some reason)... that is the one I have found so far....
The biggest issue we have is with the I/O addressing; the SLC program uses a lot of field mounted FlexI/O connected on DeviceNet, but the customer for the PLC5 system wants it all to be rack mounted I/O in the panel so the I/O addressing is totally different. The SLC program has symbol names for everything so if there was a way of stripping the I/O address away from the Symbol name and copying and pasting the rungs from SLC to PLC that would be great. However if you remove the I/O address from the Symbol table the ladder program reverts to the I/O address rather than the Symbol.

I suggest exporting the Database and reallocating all the new PLC5 addresses to the existing symbol names withing Excel.

The re-import the file into RSLogix5. You may need to do a trial export from both packages and carefully compare the output of both in order to ensure that the file you finally create is in the right format for RSLogix5.

If I understand you correctly Phillip I would copy and paste the rungs from SLC to PLC and then export the PLC5 database, edit it and reimport with the correct I/O addresses. Unless I am missing something the problem with this approach is that when I copy and paste the SLC rungs into PLC5, those addresses which happen also to be valid in the PLC5 (like I:2/2) retain their symbolic names on the rung and that is fine, however, if I have an SLC address which is not valid in PLC5, like I:2/9, that loses its associatian with a symbol when I copy the rung into PLC.

Ok umm how about doing a "Save As" with a file type "*.slc. This creates a text file of your whole program that you can now do a "search and replace" on, ie change the SLC addresses to valid PLC ones.

Once you have got the susbstitutions made, then see if you can save it as a *.PC5 file, which is also a text file that RSLogix5 can open.

I suggest you experiment converting these "Library" file types, on some simple trial program.