Mitsubishi MELSEC-Q Series User Manual page 507

13
MULTIPLE CPU SYSTEM CONCEPT
(1) Input (X) loading
Whether inputs can be loaded or not from the input modules and intelligent function
modules controlled by another CPU is determined by "I/O sharing when using Multiple
CPUs" on the <<Multiple CPU setting>> tab of the C Controller setting utility.
Figure 13.16 I/O sharing when using Multiple CPUs (Input loading)
(a) When "All CPUs can read all inputs" has been set
1) When the bus interface function is executed, ON/OFF data is downloaded from
the input modules and intelligent function modules controlled by another CPU
to the inputs (X) of the host CPU.
/* X is read in 1 word unit */
ret = QBF_X_In_WordEx(path, flg, xno, size, data, datasize);
Figure 13.17 When inputs are loaded by CPU No. 1
13.4 Access Ranges between CPU Modules and Other Modules
I/O sharing when using Multiple CPUs
All CPUs can read all inputs:
"All CPUs can read all inputs" has been set
All CPUs can read all inputs:
"Not all CPUs can read all inputs" has been set
CPU 0 1 2 3 4
2 2 2
Read when bus interface function
is executed.
13.4.2 Access to non-controlled modules
Slot number
Control CPU setting
13
- 16
9
10
11
12
13
14
15
16