Mitsubishi MELSEC-Q Series User Manual page 131

3
CONCEPT FOR MULTIPLE CPU SYSTEM
(d) When using the PC CPU module
Remark
The PC CPU module occupies two slots. The one on the right side among the two
slots is handled as an empty slot. (16 empty points are occupied by default.)
Therefore the I/O number of the next slot on the right side of the PC CPU module
is "10 ." (Set the empty slot to zero point on the I/O assignment of PLC Parameter
H
dialog box, to assign "00
H
(Example) When "No. of CPUs" is set to 3.
No. of CPU modules
Diagram 3.20 Position of I/O number "00
1) If the number of CPU modules mounted on the main base unit is less than the
number set at the "Multiple CPU setting", set the open slot(s) to "PLC
(Empty)".
For the "PLC (Empty)" setting, refer to "Section 3.1"
2) The I/O numbers for the multiple CPU system can be confirmed with the
system monitor.
3) The I/O number "00H" can be placed in any slots with I/O assignment setting
of PLC parameter.
QCPU User's Manual (Function Explanation, Program Fundamentals)
3.3.1 I/O number assignment of each module
" to the first I/O number.)
Slot number
CPU 0 1 2
Empty slot
(3 modules)
(00 to 0F
H
3.3 Concept of I/O number assignment
occupied)
H
"
H
3
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