Symbol Table for Step 7


Thread Starter


I have taken up studying in step 7. I did symbol table and example into OB1. Then I have done programming into FB1. My is question. Should I create the same symbol table for both blocks or symbol table must be another? If I should have two symbol tables. How can I create these? When I am doing program, I see some mistake (symbols and address are red). How should I avoid it?

Thank you for advance.
You have to do only one symbol table, in Step 7 Classic. In Tia Portal you can do it different tables.
If error occurs in symbol table probably there are equal symbol names.