The company I work for recently acquired several machines using SLC 500 with SLC5/03 (1747-l532 ser E Rev 8) processor running 1747-OS302 Ser C FRN 8 software. I only have RSLogix 500 Micro software. I am able to connect to the unit but when I try to upload the program, I get a "processor not supported' error. The company is a small company and I had to buy my own software. What would be the least expensive version of RSLogix 500 that would support this processor? I would also need it to support MicroLogix 1200 and 1400 PLCs. Any help would be greatly appreciated.