Hi guys,
I am beginner to siemens.
We have 5 cranes ( each has its own PLC) and 1 Main PLC.
I have downloaded a program.
After i downloaded the program, 4 of the crane CPU have error.
The error says " I/O access error, reading".
and when i tried to download hardware configuration, another error comes up and it says "The device name 'PN-IO' is not unique.
Please help me with this issue..
Thanks
