AC 500 Eco
I have a problem with with a PM 554 - TP - ETH, when the PLC turn on, the Error led blinks fast and I cant do anything, with this problem its impossible to me to connect to the PLC by TCP/ip or TK cable. I already try to put new firmware into the PLC (V2.4.4) using the SD card but without sucess.
Previsoly I had the (V2.4.2) firmware version and the program inside was built in codesys (V2.2.0).
Anyone have a tip for me in this one?
Thank You All
After which changes you have had the problem at cpu?
In any case,make sure to have backup of the program, every time.
You can try to reset the COM mode to default with the follow steps:
power off CPU, then move from RUN to STOP the switch and power on the CPU.
With this operation, you have now reset the COM port to the default values.
With TK cable you are now able to access to the CPU.
Now you can RESET ORIGINAL the CPU with Contro Builder and download again your program.
Hope this help you
Let us know about the results