I uploaded an empty PLC for testing a X20CP0484, unfortunately without even an IP address and without activating USB install. Now I am not able to reset the PLC to get into BOOT mode to upload any programs. Please suggest what I can do to fix it.
Hi Mirza,
there is a Reset button on that PLC:
Operating and connection elements
The operating mode can be selected as described here:
Operating mode
Thanks Martin,
As I said in the description above, I am not able to get into the Boot Mode to load a new program. I was using the Reset button to try to get into the Boot Mode but the AS is never able to detect the CPU from the Online - Browse
Hi,
if the PLC doesn’t enter BOOT mode after using the sequence as described under “operating mode” (press less 2 sec, release, within 2 sec. press again longer then 2 sec., release → BOOT mode), I’ve no idea what to do more … in that case, please contact you local B&R office for further support.
But if it enters BOOT mode , and only “Browse for PLC” doesn’t work for whatever reason, you could try to install from USB - but BOOT mode is also neccessary for this kind of setup:
install from USB should possible by preparing a USB Stick with the suitable project using AS (please see here, scenario 2c), plug the stick into the PLC and switch the PLC to BOOT mode as described.
Best regards!
Thanks Gentlemen,
I was able to get into the boot mode (I guess each time in the past as well because of how the I/O module lights went blinking) but it was the AS that was not finding the CPU if AS was already open. I started AS fresh AFTER I set the CPU in boot mode and it did find it without problems
2 Likes