Publication 1747-UM013B-EN-P - January 2005
Overview
1-15
Summary for Placing Modules Used In Complementary I/O
Discrete Modules
Block Transfer Modules
The following example illustrates how I/O modules requiring two
words of the input or output image can leave unused image space.
Addressing Method
Types of Modules used
Placement
2-slot
8-point
Install input modules
opposite output modules,
and output modules
opposite input modules.
(1)
(1) If an input module resides in either slot associated with a logical group of the primary chassis, an input module
cannot reside in that logical group’s complementary chassis.
1-slot
8-point, 16-point
1/2-slot
8-point, 16-point, 32-point
Addressing Method
Placement
2-slot
The right slot of the primary I/O group can be another block
transfer module, or an 8-point input or output module.
The left slot of the complementary I/O group must be empty.
In the right slot of the complementary I/O group, you can place
an 8-point output module; this slot must be empty if the
corresponding slot in the primary I/O group is a block transfer
module.
1-slot
Leave the corresponding I/O group in the complementary
chassis empty.
1/2-slot
Leave the corresponding I/O group in the complementary
chassis empty.
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