Siemens S7, FB126 / DB126

[ObrejaOvidiuCtin]

Hi,
I want to use the new function FB126 for detection error PROFIBUS network.
When opening the attached DB126 DB's; appears famous message 'There are no local variable and parameter names ...'; I applied method 'Check Block Consitency' but after this the same message appears.

I am worried and skeptical to continue the project using this new function FB126.

Any opinions ...?

Thx.

 

[mk42]

For whatever reason, when they built PNIODiag(FB126), they implemented it in such a way that it is really hard to figure out what is actually going on in the data block. It seems to be intended to match up to the included HMI screens, but not much else.

It should still work, even if you can't see what is going on internally.