I am new to Allen Bradley and am experimenting with a MicroLogix 1500 system. Base is 1764-24BWA Series B, Processor is 1764-LRP Series C. I only have 110V hooked to it right now, just seeing if I can see it with my PC - RSLinx lite 2.58.00.15 . When I power on the unit it cycles the power light, then power light goes solid green and fault steady blinks red. Verified COM port for USB-serial is 4, go into RSLinx and configure RS-232 to COM4 and try to auto config but no response. I tried DCOMM mode also, no response. I have USB-serial for both 9 pin and round 8 pin connectors.
Do I need anything else wired to unit? Maybe the different series is stopping functionality? Maybe I need different version of RSLinx (Windows 10)? I'm at a loss where to start.
Thanks in advance!