Mitsubishi MELSEC-Q Series User Manual page 166

4
COMMUNICATIONS BETWEEN CPU MODULES
Refresh setting of CPU No. 1
Refresh setting of CPU No. 2
4
- 16 4.1 Communications between CPU modules using CPU shared memory
4.1.2 Communication by auto refresh using CPU shared memory
• Devices of setting 1 to 4 can be set independently for each CPU.
For example, devices of CPU No.1 can be set up as link relays, and those
of CPU No.2 can be set up as internal relays.
The same number of points is set
for all CPUs.
Diagram 4.14 Devices set individually for each CPU
[Processing of auto refresh]
CPU No. 1
Device
B0
to
B1F
B20
to
B3F
Diagram 4.15 Outline of auto refresh processing
CPU devices of CPU No. 1 and
No. 2 are set with the same
device.
CPU devices of CPU No. 1 and
No. 2 are set with different
devices.
CPU No. 2
Device
M0
to
M31
M32
to
M63
(between CPU No. 1 and No. 2)