Toshiba PROSEC T1-16S User Manual page 242

7. Instructions
Note
In the T1-16S, the following register/device range is only effective for this Direct I/O instruction.
Input on basic unit
X000 - X007
The Direct I/O instruction can be programmed in the main program and in the interrupt program.
If this instruction is programmed in both, the instruction in the main program should be executed
in interrupt disable state. Refer to EI (FUN 140) and DI (FUN 141) instructions.
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Output on basic unit
Y020 - Y027
I/O module
Not effective
6F3B0253