Mitsubishi MELSEC Q Series - Page 507

13
MULTIPLE CPU SYSTEM CONCEPT
13.4 Access Ranges between CPU Modules and Other Modules
13.4.2 Access to non-controlled modules
13 - 16
9
UTILITY OPERATION
10
FUNCTIONS AND PROGRAMMING
11
OVERVIEW OF MULTIPLE CPU SYSTEM
12
MULTIPLE CPU SYSTEM CONFIGURATION
13
MULTIPLE CPU SYSTEM CONCEPT
14
COMMUNICATIONS BETWEEN CPU MODULES
15
PARAMETERS ADDED FOR MULTIPLE CPU
16
PRECAUTIONS FOR USE OF AnS SERIES MODULE
(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.
(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.
Figure 13.16 I/O sharing when using Multiple CPUs (Input loading)
Figure 13.17 When inputs are loaded by CPU No. 1
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
2
2 Control CPU setting2
Read when bus interface function
is executed.
Slot number
CPU 0 1 2 3 4
/* X is read in 1 word unit */
ret = QBF_X_In_WordEx(path, flg, xno, size, data, datasize);
Input module Output module Input module Output module