Hello everybody,

I have a CPU 313C (6ES7 313-5BE01-0AB0) and a CP 343-1 to connect 2 CU250S-2PN configured for vector. To read the telegrams in the PLC I'm trying to use SFC14 block but when block is downloaded to PLC this one goes to STOP and D280 Error compiling block appears.

I don't know what is going on.

Any help please. Thanks.

Hello MatalKain;

If you search on the forum for D280 Compile Error, you fill find various threads that point to a fault that appears not when you compile your program, but when you try to download it to your CPU, because your CPU is not able to handle the structuire of your program. For example, you are using a bit address M268.0, but your number of flags is limited to M255.0, so you are exceeding the capacities of your old CPU. 

https://support.industry.siemens.com/forum/ca/en/posts/d280-error-compiling-block-in-s7-300-cpu/337467/?page=0&pageSize=10

Here you can check the Techionical Data of your CPU 313C:

https://support.industry.siemens.com/cs/ca/en/pv/6ES7313-5BE01-0AB0/td?dl=en

If you examine your program (specifically the block you have prepared to use SFC14, the one that causes D280 to appear) you might find where you have introduced a value that your CPU cannot handle. Bring that value back to the range your CPU can handle and you will be able to make your program work.

Or attach the block that causes you problems here as a pdf or jpeg attachmenet so we can look at it, maybe we will be able to spot your problem.

Hope this helps,

Daniel Chartier