Create A Program - Mitsubishi AL-6MR-A Quick Start Up Manual

Mitsubishi Alpha / Alpha2
Programmable Controller

6.1 Create a Program

Remember, as a function and logic block programmer it is your task to:
1. Choose the appropriate block
2. Set the block's parameters (where this is necessary)
3. Connect your blocks in the correct sequence for your application
You will use these steps to create a program to do the following:
• Switch an output ON using a normally open push switch
• Switch that output OFF using a normally closed push switch
Your program will be equivalent to the following ladder logic program. (This is shown for the
benefit of those familiar with ladder logic programming).
Steps to create this program using Visual Logic:
Double click on the FBD Title area. In the Dialog box enter "Start Stop Program".
Choosing the blocks:
1. Click the IN button to access the Input group of blocks.
2. Click the Push Switch. Scroll up or down if you can't see the Push Switch. If you're
unsure of the block's name just position the mouse over the block. The name will appear
where your cursor is.
3. Click the I01 square. The Push Switch is now an external input to your program.
4. Click the Push Switch
5. Click the I02 square
6. Click the FUNC button to access the Function block group of blocks.
7. Click Set Reset
8. Click in the green area to place the block.
9. Click the OUT button to access the Output group of blocks.
10. Click the Magnetic Contactor
11. Click O01. The contactor is now an external output from your program.
This is how simple it is to choose blocks for your programs. You can give your blocks
meaningful names. Simply double-click on the block and type the name into the Comment
field (ensure the Display Comment box is ticked).
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