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T1/T1S User’s Manual
6. Programming Information
Internally, the T1/T1S has an information called ‘I/O allocation table’ in its memory. This
I/O allocation table shows the correspondence between I/O hardware and software, i.e.
register/device.
The contents of the I/O allocation table are as follows.
Slot I/O type
PU
0X+Y 4W
1
2
3
4
5
6
7
The T1/T1S operating system automatically sets the I/O type ‘X+Y 4W’ on the slot 0
position when the memory clear is executed for the T1/T1S.
When the T1/T1S program is developed in off-line, the above I/O allocation table should
be set before programming. For this operation (called manual I/O allocation), refer to the
programming tool manual.
PU slot must be blank
Slot 0 is for basic unit (XW00, XW01, YW02 and
YW03 are assigned internally)
Slots 1 to 3 are reserved for option cards
Slots 4 and 5 are reserved for Expansion unit
Slots 4 to 7 are reserved for T2 I/O modules
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