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MELSEC-Q
17 COMMUNICATIONS BETWEEN THE MULTIPLE PLC SYSTEM'S I/O
MODULES AND INTELLIGENT FUNCTION MODULES
(1) Loading input (X) from input modules and intelligent function
modules
The "Out of group input/output settings" setting in the PLC parameter's multiple
PLC settings determines whether input can be loaded from input modules and
intelligent function modules being controlled by other PLCs.
Out of group input/output settings
The input condition outside the group is taken:
The output condition outside the group is taken:
(a) When "Load input condition outside of group" has been set
1) Loads ON/OFF data from the input and intelligent function modules
being controlled by the other PLCs by performing input refresh before
a sequence program calculation starts.
2) Input (X) loading is performed for the modules mounted onto the
following additional base unit slots.
I/O allocation type
Mounted module
Remarks
Input module
—
None
Intelligent function module
—
Input module
—
Input
Output module
Loads OFF data
Intelli.
Intelligent function module
—
3) It is possible to load ON/OFF data from input modules and intelligent
function modules with direct access input.
4) Remote station input, such as empty slots, MELSECNET/H and CC-
Link, cannot be loaded.
Use automatic refresh of device data to use the ON/OFF input data for
MELSECNET/H, CC-Link and other remote stations in other PLCs.
(b) When "Do not load input condition outside of group" has been set
It is not possible to loads ON/OFF data from input modules and intelligent
function modules being controlled by other PLCs (remains at OFF.)
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