Mitsubishi Electric MELSEC Q Series User Manual page 37

Item
CPU module mounting posi-
tion and CPU No.
I/O number assignment
Concept
Restrictions on number of
mountable modules
Access from CPU module to
other modules
Access from GOT
Access with instruction using
link direct
Access range
Access to CC-Link
Access from peripheral
devices
Clock data used by intelli-
Clock func-
gent function module (QD75,
tion
etc.)
CPU module resetting oper-
ation
Operation
Operation for CPU module
stop error
1 - 12
Table1.2 Difference from single CPU system (continued)
Single CPU system
CPU slot only (no CPU No.)
Slot 0 is 00 .
H
The number of mountable mod-
ules per CPU module is
restricted depending on the
module type.
All modules can be controlled.
Accessible
Accessible
Accessible
Accessible through RS-232
cable or via network.
Clock data of the Basic model
QCPU is used.
The entire system is reset by
resetting the Basic model
QCPU.
The system stops.
Multiple CPU system
CPU slot = CPU No. 1
Slot 0 = CPU No. 2
Slot 1 = CPU No. 3
The number assigned to the right of the
CPU module placed in the rightmost
position in the multiple CPU setting is
*4
00 .
H
The number of mountable modules per
QCPU and per system is restricted
depending on the module type.
Setting the relations between the CPU
module and other modules with the
PLC parameter (control CPU) is
required.
Only control CPU is accessible.
Only control CPU is accessible.
Accessible through RS-232 cable or via
network.
For access when the Motion CPU, or
PC CPU module is connected, refer to
the relevant manual.
Clock data of the Basic model QCPU
(CPU No. 1) is used.
The entire system is reset by resetting
the Basic model QCPU (CPU No. 1).
( Resetting CPU No. 2 and 3 individu-
ally is not allowed.)
For a stop error of the Basic model
QCPU of CPU No. 1, the multiple CPU
system stops. (CPU modules No. 2 and
3 are in "MULTI CPU DOWN (Error
code: 7000)" status.
For a stop error occurred in CPU No. 2
or 3, the operation depends on the
parameter setting of "Operation mode".
Reference
Section 3.1.1
Section 3.3.1
Section 2.4
Section 3.4
Manuals for
GOT
Section 3.6
CC-Link sys-
tem master/
local module
manuals
Section 2.2
Section 3.8.2
Section 3.9
Section 3.10
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