In Siemens TIA Portal, an FC is used to define a function which can be executed on command from an organization block, or OB. FC's can be thought of as subroutines which the programmer can call from other blocks in the PLC program.
In this video, we will learn;
1. How to create an FC in the TIA Portal STEP7
2. How to call an FC from an OB
3. How to define the input and output parameters of an