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APPENDICES
A
Appendix 2 Comparison with a Single CPU System
*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
.
*2 When a Universal model QCPU (except the Q00UCPU, Q01UCPU, and Q02UCPU), Motion CPU (Q172DCPU(-S1),
Q173DCPU(-S1), Q172DSCPU, or Q173DSCPU), or C Controller module (Q12DCCPU-V, Q24DHCCPU-V, or
Q24DHCCPU-LS) is used as any of CPU No.2 to No.4, clock data in CPU No.1 can be used.
Item Single CPU system Multiple CPU system Reference
Concept
Number of CPU modules
and mounting position
Only 1 module in the CPU slot 4 modules in the CPU slot to slot 2
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
A GOT can access a Universal
model QCPU of the specified CPU
No.
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
used
Access from peripherals
Accessible through a USB
cable/RS-232 cable/Ethernet
cable or over network.
Accessible through a USB
cable/RS-232 cable/Ethernet 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 CPU
No.2 to No.4
Not supported
Clock data of the Universal model
QCPU (CPU No.1) (except the
Q00UCPU, Q01UCPU, and
Q02UCPU) is used.
*2
Page 99,
Section 4.4
Clock data used by
intelligent function modules
(such as the QD75)
Clock data of the Universal
model QCPU is used.
Clock data of the Universal model
QCPU (CPU No.1) is used.