mustfa majed hamid
Hi there, I had a problem in our project used in a power plant system PLC S7-400 5H
all LED for the CPU is blinking light?
So what I do to fix my problem. I can't connect to the CPU for any diagnostic buffer?
Hi Mustafa, You need to connect to the CPU in the online mode and check the diagnostic buffer. Otherwise, you may want to try checking the hardware and the cables to see if there is anything disconnected.
Dear Shahpour, thank you for your response .
i try to connected online i cant entry inside the cpu
you can seen the link of video for CPU