Mitsubishi MELSEC-Q Series User Manual page 136

3
CONCEPT FOR MULTIPLE CPU SYSTEM
(2) Loading output (Y)
3
- 25 3.4 Access Range of CPU Module and Other Modules
3.4.2 Access range with non-controlled module
The "I/O sharing when using Multiple CPUs" setting in the PLC parameter's Multiple
CPU settings determines whether output can be loaded from output modules and
intelligent function modules being controlled by other CPUs.
Diagram 3.24 I/O sharing when using Multiple CPUs (output loading)
(a) When "All CPUs can read all outputs" has been set
1) Loads to the host CPU's output (Y) the ON/OFF data that is output to the
output module and intelligent function modules being controlled by the other
CPUs, by performing output refresh before a sequence program operation
starts.
Diagram 3.25 When performing output loading in CPU No.1
I/O sharing when using Multiple CPUs
All CPUs can read all outputs:
"All CPUs can read all outputs" setting
All CPUs can read all outputs:
"Not all CPUs can read all outputs" setting
Y30
Loading with output
refresh is allowed.
CPU 0 1 2 3
Input Output Input Output
Number of slot points 16 points 16 points 16 points 16 points
2 2
Loading is allowed from
non-controlled CPU
Slot number
4
2 Control CPU setting