Mitsubishi MELSEC-Q Series User Manual page 607

13
MULTIPLE CPU SYSTEM CONCEPT
(c) "CPU (Empty)" setting
An empty slot can be reserved for future addition of a CPU module.
Set the number of CPU modules, including the one on the empty slot, in "Number
of CPUs" on the <<Multiple CPU settings>> tab of the C Controller setting utility.
After that, set the type "CPU (Empty)" to the slot on the right side of the mounted
CPU module(s) on the <<I/O assignment settings>> tab of the C Controller setting
utility.
(Example) When the Number of CPUs is set to 4 in the Multiple CPU settings
and two C Controller modules and one Motion CPU are mounted
Mount the C Controller modules to the CPU slot and Slot 0 and the
Motion CPU to Slot 1, and set Slot 2 to "CPU (Empty)".
Mounting allowed
CPU 0 1 2
POINT
When the C Controller module is used, "CPU (Empty)" cannot be set between
CPU modules.
However, since no mouniting position priorities are given between the C Controller
module and Motion CPU, either of them can be added without shifting the
rightmost CPU module to the right.
CPU 0 1 2
Addition
Either CPU module
can be added.
Mounting not allowed
Slot number CPU
Figure 13.1 "CPU (Empty)" setting
Slot number CPU
CPU
Figure 13.2 Addition of CPU module
13.1 Mounting Position of CPU Module
0 1 2 Slot number
0 1 2 Slot number
0 1 2 Slot number
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