Mitsubishi Electric Q12DCCPU-V User Manual page 324

7
I/O NUMBER ASSIGNMENT
7
- 11 7.3 Base Unit Assignment (Base Mode)
2) When the set number of slots is less than the number of slots used on the base
unit
The slots after the set quantity are disabled.
For example, if the number of slots to be used is set to eight on a 12-slot base
unit, the right four slots are disabled.
Mounting a module in a disabled slot causes an intelligent function module
assignment error (error code: 2124, SP.UNIT LAY ERR.)
Main base unit
Q312B
CPU
Power supply
module
Figure 7.11 When the set number of slots is less than the number of slots used on the
0 1 2 3 4 5
C Controller
module
Modules can be
installed. (In 8-slot
setting)
base unit
6 7 8 9 10 11
Modules cannot be installed.
(Installing modules will result in error.)
Slot number