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*1 When a CPU module occupying two slots is mounted, the slot on the right of the CPU module will be 10
H
.
When a CPU module occupying three slots is mounted, the slot on the right of the CPU module will be 20
H
.
Item Single CPU system Multiple CPU system Reference
Concept
Number of CPU modules
and mounting position
Only 1 module in the CPU slot 3 modules in the CPU slot to slot 1
Page 60,
Section 3.3.2
I/O number assignment
Slot 0 is 00
H
.
A slot on the right of the rightmost
CPU module is 00
H
.
*1
Page 27,
Section 2.2
Restrictions on the number
of mountable modules
The number of mountable
modules differs depending on the
CPU module type.
The number of mountable
modules per system and the
number of controllable modules
per CPU module differ depending
on the CPU module type.
Page 71,
Section 3.5
(1) (c)
Access range
Access from CPU module(s)
to other modules
All modules can be controlled.
Relations between CPU modules
and other modules must be set in
"Control PLC" of PLC parameter.
Page 104,
CHAPTER 5
Access from GOTs Accessible
Manual for
the GOT
used
Access with instructions
using the link direct device
Accessible Only control CPU is accessible.
Page 104,
Section 5.2
Access to CC-Link Accessible Only control CPU is accessible.
Manual for
the CC-Link
system
master/local
module used
Access from peripherals
Accessible through an RS-232
cable or over network
Accessible through an RS-232
cable or over network.
For access to the Motion CPU, PC
CPU module, or C Controller
module, refer to the relevant
manual.
-
Clock function
Clock data used by
intelligent function modules
(such as the QD75)
Clock data of the Basic model
QCPU is used.
Clock data of the Basic model
QCPU (CPU No.1) is used.
Page 99,
Section 4.4
Operation
Operation when a CPU
module is reset
The entire system is reset by
resetting the Basic model QCPU.
The entire system is reset by
resetting the Basic model QCPU
(CPU No.1).
(Resetting CPU No.2 and No.3
individually is not allowed.)
Page 102,
Section 4.6
Operation when a stop error
has occurred in a CPU
module
The system stops.
If a stop error has occurred in the
Basic model QCPU (CPU No.1),
the system stops. ("MULTI CPU
DOWN" (error code: 7000) occurs
in CPU No.2 and No.3.)
If a stop error has occurred in CPU
No.2 or No.3, the operation
depends on the parameter setting
("Operation Mode").
Page 102,
Section 4.6