Technical data

Appendix
27.6 Sample Programs
Programming with STEP 7
Manual, 05/2010, A5E02789666-01 649
Creating the Program for OB1
In STEP 7, every block that is called by a different block must be created before the block
containing its call. In the sample program, you must therefore create both the FB for the motor and
the FC for the valves before the program in OB1.
The blocks FB1 and FC1 are called more than once in OB1; FB1 is called with different instance
DBs: