My problem appears to be fixed after I deleted plc data and reinstalled my software. I'm now able to write to plc and reset it, the Error LED turned off. I hope it won't come back
@Cetronic, no problem! I have to thank you for being intressed in my post. I'm here to learn from you about mitsubishi PLCs!
@Copyleft, thank you for having mentioned eManual Viewer. I was expecting something like that in order to make use of all of those manuals.
To answer your questions :
RTFM (to me is) : Read Safety related informations -> Read Installation and Wiring Guides -> Quick Start <-> Troubleshooting
When I connot find a direct connection between Quick Start and Troubleshooting, I feel missing something. For example , I couldn't make use of this warning message...
I don't think the following Diagnostics(CPU) is really helpfull, since the only proposed corrective is "Write the project again". I'm used to jump from Error Code to details and corrections.
2. Is this a brand new? Yeah, it is!
".... you even don’t know the Mitsubishi series nomenclature ...."
When I was in college back in 2008, I bought this book of John Ridley and helped me a lot. Even if I didn't have access to the actually hardware, I used the content on hardwares within my reach....