failed firmware update

Just tried to flash a 1794-L34 flex-logix PLC, it failed part way through with some sort of comm error.(11011) What are my options now, can I reset the PLC back to original state etc etc.

Can see the PLC in RSlinx as 1794-L34, but now shows up as unrecognised device.

Thanks

If you see red X in linx, it means you don't see it.

Try to cycle power without battery
If you see processor in linx, you can reflash it.
If not- send it for repair

I can see the PLC in linx without the red X but it does not show up with the proper symbol now, must not have a current EDS for that version. It shows that the PLC is the current revision, that we tried downloading, but I cannot flash again with the controlflash program. When I get to the step to select which firmware file to use, I cannot select any, even after clicking the SHOW ALL button. It should show all available firmware files, but none show up in list. I searched for the NVS file and got to the proper directory but still will not show up in the list

Get correct EDS file first, and get linx to recognize it correctly.

Use ControlFlash after that.

I can see the main Processor image saying the version etc, then next level is the backplane, then the next level is the processor but just 1794-L34 no version or anything. Is that the level in linx I goto? When I goto that level in controlflash it says communication error, when I goto the first level with revision etc, then I cannot select a firmware version.

OK, now I can start the firmware update and it goes for a while, then comm error. Restart it and at some other place in the progress of the update the same comm error.

This sounds to me like a power problem either in your PC or your controller power supply, or a wonky cable, or some combination of these factors.

If it were me, I'd take the controller to my Rockwell dealer and have them carefully perform the upgrade with a PC that's known to perform correctly.

Thanks all, this was actually for a guy that I work with. We loaded up my laptop and all went well!!

COMPUTERS!!!!