Hello,

I want to ask what might cause that priority in alternative branches not working correctly.
I know that if more transitions are satisfied, then the furthest left has priority.
But in my case its not working.
I have 3 alternative branches.
If 1st is satisfied it works correctly, doesn't matter what is in another 2 branches.
If 1st is not satisfied at time when 2nd and 3rd are satisfied then program jumps into the 3rd branch.

In attachment you can se test to prove what happens:

Branch1: T257 is blocked
Branch2: T410 enabled with step after S208 where is set “m_trans_1”
Branch3: T260 enabled with step after S151 where is set “m_trans_2”

But then result is that  “m_trans_2” - is in state TRUE.

I wasn't able to find anything what can explain me this behavior of GRAPH sequence.

CPU 1517TF-3 PN/DP
6ES7 517-3UP00-0AB0
FW:2.6
TIA 15.1
There is only one thing that might be the problem, FW difference online FW is 2.8,
but this is new issue that wasn't there before and this difference is there since start of line.

Update version of TIA a fit FW is last chance to solve it.

Anyone have idea what else might be wrong?

Thanks in advance