We have a few GE Series One PLC's at my plant that I need to upload and download too. Some time ago we purchased the DirectSOFT32 software and a D3-232-DCU com unit and cable. The problem is that the cpu is a IC610CPU130A and I don't know if this is compatable or not. I contacted Automation Direct and they don't know anything about that CPU, but say's I should check the dipswitches on the DCU. I don't have a manual for the DCU nor can I find it at Automation direct's website. I did try to communicate with the PLC, and it did see it communicate, but say's it doesn't recognize the PLC. I also have a Direct logic 305 CPU and it say's the same thing. Any one have idea's. Thanks in advance.