We got a V280 controller, had to change the code inside. I made a RJ11 RS232 cable according to a manual. Successfully connected and uploaded the code. Changed the code (just a linear regression values). Then downloaded the modified code to the controller. Modified program is worked supposedly. After that, I am no longer able to connect to controller again. Although nothing has changed, I checked all the configurations. Cable pins, RS232 settings, USB converter. Everything is same.
I've entered Info Mode by pressing down "i" button for 4 seconds. Got password screen. Entered 1111, but it doesn't work. I have seen there was a code 7455 somewhere in PLC code. Entered, it worked. But there is no anything related to "Erase". There are variables screen, system settings (serial port configuration, firmware, plc state...)
While controller is in info mode, I display serial port configuration screen. Let's say 57600 baud rate is selected. I select different baud in VisiLogic PC software and hit to connection button. I see baud rate on Vision controller changes to what I selected on PC. Whatever I do, I still get the error below (screen shot is also added);
Communication 23/08/2013 14:49:15 Close port
Communication 23/08/2013 14:49:13 "Open port 1 57600,N,8,1"
Communication 23/08/2013 14:49:13 Unable to Synchronize - PLC Communication Parameters cannot be set
Communication 23/08/2013 14:49:11 "Open port 1 9600,N,8,1"
Communication 23/08/2013 14:49:10 Send break signal
Communication 23/08/2013 14:49:10 "Open port 1 57600,N,8,1"
Communication 23/08/2013 14:49:09 Close port
Communication 23/08/2013 14:49:09 "Open port 1 57600,N,8,1"
I've got the original source code. If I could wipe the controller out, I can program it from the beginning. Do you know how can I reset it?
P.S.: tried different versions of VisiLogic, searched the old forum, read the manual... nothing solved the issue yet.