It is still possible to check communications failure of single slave.
You need to compare Communication report and operation report values, when block have called and activity bit falls from "1" to "0" (move values to different addrees range from Gest group)
Change sequence to different block only after little pause when activity bit goes to "0".
That way you have only one communication block active one time and you have time to check operation report and communication report before them are updated of another block call.
Thanks for the insight Lare. I will try this alternative also.
The case is that the that from each slave I have to read consequtive registers from different memory areas at the slave.
So for each slave, I will use the required READ_VAR blocks, all configured with the same GEST variable.
I ll work it around and see the results.