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MELSEC-Q
5 ASSIGNMENT OF I/O NUMBERS
5.4 What are I/O Numbers?
I/O numbers are used in sequence programs for importing ON/OFF data to High
Performance model QCPU from outsides and outputting ON/OFF data from High
Performance model QCPU to outsides.
Input (X) is used for the importing of ON/OFF data to High Performance model QCPU.
Output (Y) is used for outputting ON/OFF data from High Performance model QCPU.
I/O numbers are expressed as hexadecimal.
When using 16-point I/O modules, I/O numbers are consecutively assigned to the slots
having 0 to F, 16 points, as follows.
The module mounted in the base unit assigns the following:
• For the input module, "X" is assigned at the beginning of the I/O number.
• For the output module, "Y" is assigned at the beginning of the I/O number.
CPU
module
16 input
points
X 0 0 0 X 0 1 0 X 0 2 0 Y 0 3 0 Y 0 4 0
X 0 0 F X 0 1 F X 0 2 F Y 0 3 F Y 0 4 F
For the case of input module
For the case of output module
X2C
Power
supply
module
16 input
points
16 input
points
16 output
points
16 output
points
Содержание QCPU (Q Mode)
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