Bob has my email and I will watch for his PDF. At this point, I believe that I have come full-circle. Although with your help, and the help of the community, I am much better off than I was. I am back to my original problem of how do I get the program into the SLC500 PLC. While I am tempted to go with a more modern (ML 1100) PLC, I prefer the less invasive approach of programming and installing a memory module with the verified program. My best hope is to find someone that can program the Memory Module for me.