6F3B0250
Basic Hardware and Function
257
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
Name Device Re
ister Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
n
Re
ister size 1 - 32
A
Start of
re
isters
ÖÖ
Example
When R010 is ON, the 4 registers starting with XW00 (XW00 to YW03) are updated immediately.
XW00 Input
XW01 circuit
YW02 Output
YW03 circuit
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