User Manual Owner's manual
3–22 Addressing Modes for Your Remote I/O
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Some processors support a complementary I/O configuration. Refer
to the user’s manual for your processor to see if it supports this type
of configuration.
You configure complementary I/O by duplicating an I/O rack
number of one I/O chassis (primary) in another I/O chassis
(complementary), I/O group for I/O group. The I/O modules in the
complementary chassis perform the opposite function of the
corresponding modules in the primary chassis.
Module Placement with 1/2Ćslot Addressing
Figure 3.19 shows possible module placement for a complementary
I/O configuration with 1/2-slot addressing.
Figure 3.19
Complementary I/O Configuration with 1/2Ćslot Addressing
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Complementary I/O with
1/2ĆSlot Addressing