M
Hi,
There is a problem with one of my SIEMENS S7-400 PLCs. If I cut the power for more than half an hour, I will lose the application program, So, it must be downloaded again.
It is not happening in case of short time power off/on.
The batteries are OK.
The voltage of power supply also is OK.
Thanks for Help.
There is a problem with one of my SIEMENS S7-400 PLCs. If I cut the power for more than half an hour, I will lose the application program, So, it must be downloaded again.
It is not happening in case of short time power off/on.
The batteries are OK.
The voltage of power supply also is OK.
Thanks for Help.