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MELSEC-Q
2   SYSTEM CONFIGURATION 
 
2.2 Precautions on System Configuration 
 
(1)    For use with the Redundant CPU 
 
(a)   Dedicated instruction
 
The dedicated instruction cannot be used. 
 
(b)   GX Configurator-AD connection 
GX Configurator-AD cannot be used when accessing the Redundant CPU 
via an intelligent function module on an extension base unit from GX 
Developer. 
Make a connection to the Redundant CPU by way of the communication 
paths indicated below. 
 
2
1
Main base unit
Extension base unit
1 2
Direct connection to the CPU
Connection through an intelligent function module on the main base unit
Throu
h Ethernet module
 MELSECNET/H module
 or CC-Link module
(GX Configurator-AD cannot be used.