Mitsubishi Electric MELSEC Q Series User Manual page 43

.
Item
CPU module mounting posi-
tion and CPU No.
Concept I/O number assignment
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 - 18
Table1.4 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 USB or RS-
232 cable, or via network.
Clock data of the Process CPU
is used.
The entire system is reset by
resetting the Process CPU.
The system stops.
Multiple CPU system
CPU slot = CPU No. 1
Slot 0 = CPU No. 2
Slot 1 = CPU No. 3
Slot 2 = CPU No. 4
The number assigned to the right of the
CPU module placed in the rightmost
position in the multiple CPU setting is
*5
00 .
H
The number of mountable modules per
CPU module 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.
Accessible to the Process CPU of the
specified CPU No.
Only control CPU is accessible.
Only control CPU is accessible.
Accessible through USB or RS-232
cable, or via network.
For access when the Motion CPU, PC
CPU module, or C Controller module is
connected, refer to the manual of each
CPU module.
Clock data of the Process CPU (CPU
No. 1) is used.
The entire system is reset by resetting
the Process CPU (CPU No. 1).
(Resetting CPU No. 2 to 4 individually
is not allowed.)
For a stop error of the Process CPU of
CPU No. 1, the multiple CPU system
stops. (CPU modules No. 2 to 4 are in
"MULTI CPU DOWN (Error code:
7000)" status.
For a stop error occurred in any of CPU
No. 2 to 4, the operation depends on
the parameter setting of "Operation
mode".
Reference
Section 3.1.2
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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