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Hello, I am unfamiliar with AB products and their communication and am seeking some help. I need to hook up to a SLC/501 and hopefully make an online change to a preset in one of the counters. I am using NT4(SP4) on a Dell 7000 hooked up through a 1747-PIC via RSLINX Lite and RSLOGIX500. I have the 1747-PIC driver installed in LINX to COM1 and it appears to be working okay when I run its diagnostics but I am unable to get communication going with the SLC/501. Is there another driver needed for the SLC itself? I have tried setting the PIC node to both 0 and 1 since I don't know what was given to the SLC. When I run superwho I only see the PIC. I have tried to go online and I get the error that the target device is not a SLC500 or Micrologix. It has also given me the error that it can't find the target device at the specified path. The SLC/501 has a run light and is operating fine. I also don't have a copy of its program on the laptop. Thanks for any help, Thomas