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 position in a set amount of time.
In this video, you will learn how to create the logic in the Main OB1 for an on/off valve with a command disagree alarm.
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...
In the previous videos in the series “How to Use Function Blocks (or FB) in a PLC Program”, I showed you how to configure an FB and its associated Data Block, or DB, and how to call the FB from the main program.
In this video, you will learn:
– What a drum sequencer is, and,
– How it can ...
In this series, we have seen that a Function Block has many practical real-world automation applications.
I showed you how an FB and its associated data block are configured.
In this video, I will show you how to configure a single block in the step seven programming environment to perfor...
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