Mitsubishi Electric MELSEC iQ-R C R12CCPU-V, User Manual

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8 MULTIPLE CPU SYSTEM FUNCTIONS
8.1 Out-of-Group I/O Fetch
8.1
Out-of-Group I/O Fetch
In a multiple CPU system, the access range of the controlled module is different from that of the non-controlled module. The
out-of-group I/O fetch function enables data which cannot be accessed to be imported. However, data cannot be imported
from the module that is an inter-module synchronization target.
Accessing controlled module
The access range to the controlled module of the CPU module is the same as that of the single CPU system. I/O refresh for
the controlled module or read from/write to the buffer memory of an intelligent function module is enabled.
Accessing non-controlled module
Access to the non-controlled module of the CPU module is limited to reading the buffer memory of the intelligent function
module. However, the ON/OFF data of output (Y) of the non-controlled module can be imported by "I/O Setting Outside
Group".

: Accessible,

: Not accessible
I/O Setting Outside Group
Set the I/O state outside the group.
[System Parameter]  [Multiple CPU Setting]  [Other PLC Control Module Setting]  [I/O Setting Outside Group]
Window
Displayed items
Access target Accessibility
When "Import" is selected in "I/O
Setting Outside Group" When "Not Imported" is selected
in "I/O Setting Outside Group"
Input (X) Read data from
another CPU
module  
Output (Y) Write data to
another CPU
module
 
(Non-processing)
Read data from
another CPU
module
 
(Non-processing)
Buffer memory of an intelligent function module Read data  
Write data  (Error)  (Error)
Item Description Setting range Default
Input Status Outside Group Set the input state outside the group. • Not Imported
• Import Not Imported
Output Status Outside
Group Set the output state outside the group. • Not Imported
• Import Not Imported