9 CREATING A HARDWARE LOGIC
9.1 Main Blocks in the Hardware Logic Outline Window
113
9
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Setting and link of the encoder for which Input Data Type is set to Pure binary or BCD
When data is input from the encoder for which Input Data Type is set to Pure binary or BCD, an error of 2 bits or more is
generated depending on the timing of reading data. Because of this, when data is input from the encoder for which Input Data
Type is set to Pure binary or BCD, specifying the read timing using a trigger signal for transfer timing is recommended.
To specify the read timing, follow the instructions below.
• Set "Data Length" to 11 bits or less.
• Link the terminal outputting the transfer timing signal to the "PRESET" terminal of the counter timer block.
Output
The following table shows the output of the parallel encoder block.
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Link diagram of the hardware logic outline window
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Link diagram of the multi function counter block detail window
Variable name
Data type
Linkable block
Output value
Description
Output
Word
Multi function counter
0 to 4095
Inputs the value from the parallel encoder to the
"Absolute Encoder" terminal to use the value as a
preset value of the multi function counter.
IN 0
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 8
IN 9
IN A
IN B
Input0
Parallel_Encoder
Input1
Input2
Input3
Input4
Input5
Input6
Input0
Absolute Encoder
Input7
Input9
InputA
InputB
Input8
Output
Counter
Input 0
Counter
PRESET
Input_Signal_Event
(Only A: Rise is on.)
Содержание MELSEC-L Series LD40PD01
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