In Siemens TIA Portal, an FB, or Function Block, is used to define a function, or set of instructions, which can be executed on command from an organization block, or OB. The function block is executed each time it is called from an OB.
In the previous videos in this series, we learned how to create and configure the logic for an FB in the STEP7 programming environment.
In this video, you will learn:
– How to configure the DB to support the FB logic, and
– How to call an FB from an OB.
In the previous videos in this series, we learned how to create and configure the logic for an FB in the STEP7 programming environment.
In this video, we will learn how an FB can be used in a practical way through creating the logic for an on/off valve with a command disagree alarm.
In the ...
In the previous video in this series, we created an FB in the STEP7 programming environment to open and close an on/off valve with 2 position feedback sensors.
We also configured an alarm to indicate a command disagree alarm that is generated if the valve has not reached the commanded positi...
In the previous video in this series, we learned how to create the logic in the Main OB1 to call an FB to control an on/off valve with a command disagree alarm.
In this video, I will configure the Data Block, or DB, for the Function Block, compile the OB and simulate the operation of the valve...
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