Hi, I need help for an old type of Mecman Industrial Programmable Controller 500s. I am looking for some software that can communicate between PLC and PC (maybe CLIP) and ladder program. I have some files and extensions of files are: *.bas, *.icf, *.lad and *.lbl and I would like input these files into PLC. The PLC has a serial port. Speed is 300 baud ASCI data. Any idea?