6F3B0253
7. Instructions
FUN 235
I/O
Direct I/O
Expression
Input − [ I/O (n) A ]− Output
Function
When the input is ON, this instruction immediately updates the external input (XW) and output (YW) registers which are in the range of n registers starting with A.
•For XW register ... reads the data from corresponding input circuit
•For YW register ... writes the data into corresponding output circuit
Execution condition
Input |
| Operation | Output |
OFF | No execution |
| OFF |
ON | Execution |
| ON |
Operand
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| Constant | Index | ||||
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| X | Y | R | S | T. | C. | XW | YW | RW | SW | T | C | D | I | J | K |
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n | Register size |
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| 1 - 32 |
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A | Start of |
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| √ | √ |
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Example
When R010 is ON, the 4 registers starting with XW00 (XW00 to YW03) are updated immediately.
XW00
XW01
YW02
YW03
Input circuit
Output circuit
Basic Hardware and Function 239
