![](/images/new-backgrounds/1210176/210176217x1.webp)
Thus, you can assign the expansion models as needed:
In the above shown screen, you can observe that the address range for the expansion models assign for Slot 1 through Slot 4, it has taken first two digit as 01, 02, 03 & 04 serially.
And last three digits will indicate the register numbers.
The external input signals are allocated to the external input devices/registers (X/XW). The external output signals are allocated to the external output devices/registers (Y/YW).
The register numbers of the external input and output registers are consecutive. Thus one register number can be assigned for either input or output.
X01000 |
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| X01007 | X 0 1 0 0 0 | ||||||||||||
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| X: Input |
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| Slot Number (Slot 1) |
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| GDD288N |
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| Input: 8 Nos. (000 to 0007) | |||||||||||||||||||||||
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| Y 0 1 0 0 0 | ||||||||||
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Y01000 |
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| Y01007 |
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| Y: Output | |||||||
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| Slot Number (Slot 1) |
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Similarly |
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| Output: 8 Nos. (000 to 007) | |||||||||||||||||||||||||
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X02000 |
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| X01003 | X 0 2 0 0 0 | ||||||||||||||||||||||||
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| X: Input |
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| Slot Number (Slot 2) |
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| GAA244 |
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| Input: 4 Nos. (000 to 0003) | |||||||||||||||||||||||
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| Y 0 2 0 0 0 | ||||||||||
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Y02000 |
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| Y01003 |
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| Y: Output | |||||||
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| Slot Number (Slot 2) |
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| Output: 4 Nos. (000 to 003) |
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Page 101