Mitsubishi MELSEC-Q Series User Manual page 135

3
CONCEPT FOR MULTIPLE CPU SYSTEM
POINT
(b) When "Not all CPUs can read all Inputs" has been set
2) Input(X) loading is performed for the modules shown in Table3.8, which are
mounted to the main base unit or extension base unit(s).
Table3.8 Modules that can load inputs
I/O allocation type
None
Input
High speed input
I/O mix
Intelli.
* 1: When input(X) loading is performed for QX48Y57 of I/O composite module, input(X) is loaded as
all points OFF in Xn8 to XnF assigned to output part.
Xn0
Xn7
Yn8(Xn8)
YnE(XnE)
(XnF)
QX48Y57
Diagram 3.23 Loading of input(X) from QX48Y57
* 2: When input(X) loading is performed for output module, input(X) is loaded as all points OFF.
3) Input data cannot be loaded from empty slots and remote stations on
MELSECNET/H or CC-Link networks being controlled by the other CPU.
Use auto refresh of CPU shared memory to use the ON/OFF input data for
remote stations on MELSECNET/H or CC-Link in non-controlled CPU.
By enabling "ALL CPUs can real all outpus" setting, input data controlled by other
CPUs can be loaded into the host CPU.
In this case, if the forced ON/OFF of external I/O is activated for the input data
loaded from other CPUs to the host CPU, the data will be set into the specified
forced ON/OFF status.
For the forced ON/OFF of external I/O, refer to the following manual.
QCPU User's Manual (Function Explanation, Program Fundamentals)
It is not possible to loads ON/OFF data from input modules and intelligent function
modules being controlled by other CPUs (remains at OFF.)
3.4 Access Range of CPU Module and Other Modules
3.4.2 Access range with non-controlled module
Mounted module
Input module
High speed input module
*1
I/O composite module
Intelligent function module
Input module
High speed input module
*2
Output module
*1
I/O composite module
Intelligent function module
Loads ON/OFF of input(X).
Loads input(X) as all points OFF.
QCPU
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