PART 3: Programming Blocks (Printed version)
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In this book (PART 3) we will get familiar with Programming Blocks (Siemens TIA Portal), learn what they are and how can we use them in order to unlock their full potential, while working on actual problems. We will be discussing the details of Data Blocks, Functions, Function Blocks and Organisation Blocks.
Table of Content:
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LESSON 1: DATA BLOCKS
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EXAMPLE 1: Creating a data block
- TASK 1: Create a new data block
- TASK 2: Fill the data block with variables
- TASK 3: Download data block (to the PLC)
- TASK 4: Online monitoring and modifying values
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EXAMPLE 2: What happens with the data in the data block
- TASK 1: RUN STOP RUN the PLC and data loss
- TASK 2: Start values
- TASK 3: Retain functionality
- TASK 4: Adding a new variable into a live data block
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EXAMPLE 3: Data block manipulation and data preservation
- TASK 1: Copy Start values into the Comment column
- TASK 2: Create a snapshot
- TASK 3: Copy Snapshots to Star values
- TASK 4: Add a new variable to the data block
- TASK 5: Download the modified data block
- TASK 6: Restore original Start values and download
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EXAMPLE 4: Absolute addresses
- TASK 1: Activate absolute addressing in the data block
- TASK 2: Compile to see Offset
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EXAMPLE 5: Preparing data block for our program
- TASK 1: Creating new data blocks
- TASK 2: Writing values to the data block and reading them from it
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EXAMPLE 6: Programming with variables in data block
- TASK 1: Reading inputs, writing outputs
- TASK 2: Creating a data block for our process
- TASK 3: Modify our program
- TASK 4: Testing the program
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EXAMPLE 7: Working with Arrays
- TASK 1: Creating an Array
- TASK 2: Modifying the program
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EXAMPLE 8: Working with Structures
- TASK 1: Creating a new Struct
- TASK 2: Modifying our program
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EXAMPLE 9: Working with UDTs
- TASK 1: Create a new UDT (User data type)
- TASK 2: Using our UDT
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EXAMPLE 10: An array of UDTs
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LESSON 2: FUNCTIONS
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EXAMPLE 11: Creating a new function
- TASK 1: Create a project
- TASK 2: Create a new Function
- TASK 3: Write a simple program and call function
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EXAMPLE 12: Functions with inputs and outputs
- TASK 1: Create a function and declare its inputs and outputs
- TASK 2: Writing code with local (function’s) variables
- TASK 3: Function call – Connecting inputs with global data
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EXAMPLE 13: Writing and using a function with inputs and outputs
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EXAMPLE 14: Setting an output inside a function
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EXAMPLE 15: Proper use of inputs / outputs
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EXAMPLE 16: Modifying the Block interface
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EXAMPLE 17: Temporary variables
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EXAMPLE 18: Timers, counters and edge detection inside function
- TASK 1: Edge detection in function
- TASK 2: Counter in function
- TASK 3: Timer within a function
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EXAMPLE 19: A simple program
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LESSON 3: FUNCTION BLOCKS
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EXAMPLE 20: Creating a new function block
- TASK 1: Create a new function block
- TASK 2: Function block call
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EXAMPLE 21: Static variables
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EXAMPLE 22: Function block with inputs and outputs
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EXAMPLE 23: Timers within a function block
- TASK 1: Timer as a parameter instance
- TASK 2: The timer as a multi instance
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EXAMPLE 24: Counters within a function block
- TASK 1: Counter as a single instance
- TASK 2: Counter as a parameter instance
- TASK 3: Counter as a multi instance
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EXAMPLE 25: A Function block calls another function block
- TASK 1: Function block calls another function block as a parameter instance
- TASK 2: Function block calls another function block as multi instance
- TASK 3: Function block calls another function block as a parameter instance (contains multi instance call)
- TASK 4: Function block calls another function block as a multi instance (contains a multi instance call)
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EXAMPLE 26: A simple program
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LESSON 4: ORGANIZATION BLOCKS
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EXAMPLE 27: Creating a new organisation block
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EXAMPLE 28: Using the OB10 organization block
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EXAMPLE 29: Using the OB30 organization block
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EXAMPLE 30: Using the OB40 organization block
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EXAMPLE 31: Using the OB82 organization block
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EXAMPLE 32: Using the OB121 organisation block