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I've got a client with a Modicon Unity Controller CPU 311_10 with a NOE 771_01 Ethernet card that appears to have security enabled that keeps us from looking at the code. We only tried accessing the CPU web page from a browser and it came up with a Login we couldn't get past. We didn't have Unity Pro software with us at the time but assume we will still encounter the same security login. The person who was responsible for this system is no longer alive, his company is gone, and there is no backup. Does anyone have any idea how to get into this PLC? Thanks in advance for your help. Joe M