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9 CREATING A HARDWARE LOGIC
9.1 Main Blocks in the Hardware Logic Outline Window
Logical operation block
In the fourth section in the hardware logic outline window, 14 logical operation blocks ("Logic_Operation_0" to
"Logic_Operation_D") can be arranged.
Any logical operation of AND operation, OR operation, or XOR operation is executed for all signals input to the "Input"
terminal.
Even though a project including an unlinked logical operation block for which Logic Select is set to AND
(default) is saved, the arrangement status is not saved. When the saved project is opened, the logical
operation block is not displayed. In addition, verifying with the module is executed on the assumption that the
block is not arranged.
Input
The following table shows the input of the logical operation block.
*1 When a logical operation block is linked with an OUT terminal, any of OUT 0 to OUT 7 or OUT 0_DIF to OUT 5_DIF can be used.
*2 Either of an OUT terminal or Y device terminal can be linked with a logical operation block.
Parameter
The following table shows the parameter of the logical operation block.
Output
The following table shows the output of the logical operation block.
Variable name
Data type
Linkable block
Valid range
Description
Input
Bit
• External input
• OUT
• Y device
0, 1
Multiple signals can be input to the "Input" terminal.
Operations are executed for all input signals.
Variable name
Data type
Valid range
Default value
Description
Logic Select
Word
AND
OR
XOR
AND
Set the operation type for input signals.
Variable name
Data type
Linkable block
Output value
Description
Output
Bit
External output
0, 1
Outputs the operation results of input signals.
Outline
Summary of Contents for MELSEC-L Series LD40PD01
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