POINT
When connecting to motion controller CPU (Q Series)
In the [Base Setting] on MT Developer, set "10" to the number of slots for the extension base used for GOT connection.
Example: When setting "2" to Stage No. and "0" to Slot No. in the communication interface settings, set "10" to [2nd Stage].
HINT 
Setting unused I/O slots to empty (0 points) (only when connecting to QCPU (Q mode))
Setting unused I/O slots as empty slots (0 points) from "PC parameters" "I/O assignments" of GX Developer
allows you to use I/O numbers of "16 points 
number of empty slots" for other purposes.
For details on I/O assignment settings, refer to the following manual:
QnU User's Manual (Function Explanation, Program Fundamentals)
Qn(H)/QnPH/QnPRHCPU User's Manual (Function Explanation, Program Fundamentals)
Example: I/O assignment (when 16 points are assigned to each of all modules installed with the PLC CPU)
Main base unit
Q35B
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| CPU | 0 | 1 | 2 | 3 | 4 | · · · · Slot No. | ||
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| X00 to X0F | X10 to X1F | X20 to X2F | X30 to X3F | X40 to X4F |
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Extension base unit
Q68B |
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| Extension |
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5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 stage 1 |
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X50 to X5F | X60 to X6F | X70 to X7F | X80 to X8F | X90 to X9F | XA0 to XAF | XB0 to XBF | XC0 to XCF |
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Q65B |
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13 | 14 | 15 | 16 | 17 |
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stage 2 |
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XD0 to XDF | XE0 to XEF | XF0 to XFF | X100 to X10F | X110 to X11F |
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| Stage No. setting |
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1 | 2 |
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Schematic image of Stage No. for GOT connection viewed from PLC CPU (16 points x 10 slots occupied)
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| Extension |
18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 stage 3 |
X120 to X12F | X130 to X13F | X140 to X14F | X150 to X15F | X160 to X16F | X170 to X17F | X180 to X18F | X190 to X19F | X1A0 to X1AF | X1B0 to X1BF |
1 | 2 | 3 | 4 | 5 |
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Set Empty (0 points) to unused I/O slots.
5 - 32 | 5. BUS CONNECTION |
| 5.3 GOT Side Settings |