Mitsubishi MELSEC-Q Series User Manual page 616

13
MULTIPLE CPU SYSTEM CONCEPT
Table13.7 Mounting position of CPU module (When mounting Q02UCPU as CPU No.1)
*1
No. of CPUs
2
3
13
- 12 13.1 Mounting Position of CPU Module
(e) "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, on the <<I/O assignment settings>> tab of the C Controller setting
utility, set "CPU (Empty)" for the slot to be reserved.
POINT
Use of Universal model QCPU(s) allows "CPU (Empty)" setting between CPU
modules.
Therefore, when adding a CPU module in the future, there is no need to modify
the program because the CPU numbers do not change.
CPU 0 1 2
Figure 13.12 "CPU (Empty)" setting between CPU modules
Note that "CPU (Empty)" cannot be set on the left side of the following modules.
• High Performance model QCPU
• Process CPU
CPU 0 1 2
CPU 0 1 2
* 1 The No. of CPUs indicates the value set in "Number of CPUs" on the <<Multiple CPU settings>>
tab of the C Controller setting utility.
Refer to the manuals of the corresponding CPU modules for programmable controller CPUs and
Motion CPUs.
* 2 The Q02UCPU can be mounted.
* 3 The Q172DCPU and Q173DCPU cannot be mounted.
Slot number
Mounting position of CPU module
CPU 0 1
CPU 0 1 2
Added Universal model QCPU
CPU 0 1 2
2
Slot number
3
: Slot number