Mitsubishi Electric MELSEC iQ-R Series - Page 69

2 ASSIGNMENT FOR MODULES
2.1 Slot Numbers on a Base Unit
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■ When the number of set slots is more than the number of actual slots
Slots corresponding to the set number are occupied, where the slots exceeding the actual number are regarded as empty
slots.
Ex.
When the number of slots is set to eight for the base unit with five slots, three slots are regarded as empty slots.
The number of points for empty slots can be changed on the "Module Configuration" window, or in "Setting of
Points Occupied by Empty Slot" of the [I/O Assignment] tab on the "System Parameter" window. ( Page
73 I/O numbers of an empty slot)
■ When the number of set slots is less than the number of actual slots
Slots corresponding to the set number are occupied, where slots that are out of the set range are prohibited from mounting a
module, and the slot number is not assigned.
Ex.
When the number of slots is set to five for the base unit with eight slots, three slots will be use-prohibited.
CPU 0 1 2 3 4 5 6 7
8 9 10 11 12 14 1513
Empty slots
CPU 0 1 2 3 4
5 6 7 8 9 11 1210
Mounting prohibited