AC 800M PM856 is not pinging and showing Fault red light
IP For controller is 192.168.0.2/255.255.255.0 and PC IP : 192.168.0.16 /255.255.255.0. I tried restart of controller but after restart directly showing red light in fault on controller.
After that I pressed INT small button to reset controller until run light blinking but unfortunately controller not giving any response still it shows fault light. Also replaced lan cable.
Please suggest me how to resolve this or what i should do with same??
Normally, you don't have to loose the IP settings or firmware, even during a long miss of power supply?
Try to connect to the CPU by serial link (black cable TK212) to COM4. Update the firmware (serial firmware upgrade), then set the correct IP (IP Config). Restart the CPU (power off) after each procedure.
Finally, you have to download your application.