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I/O Allocation for CPM2C-S PCs Section 4-2
4-2-3 I/O Allocation Examples
Example 1 The following examples shows the I/O bits allocated when one 24-point
Expansion I/O Unit is connected. Bits IR 00100 to IR 00115 are allocated to
the Unit’s inputs and bits IR 011 00 to IR 01107 are allocated to the Unit’s out-
puts.
Example 2 The following examples shows the I/O bits allocated when an 8-point Input
Unit, 24-point Expansion I/O Unit, and 16-point Output Unit are connected.
Output bits are not allocated to the Input Unit and input bits are not allocated
to the Output Unit.
Note Refer to the CPM2C Programmable Controller Operation Manual (W356) for
more examples showing the bits allocated to Expansion I/O Units.
Inputs
IR 000
IR 001
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Outputs
Do not use
IR 010
IR 011
Bits
Expansion I/O Unit
(8 input points)
8 inputs
IR 00100
to
IR 00107
0 outputs
CPU Unit
(10 I/O points)
6 inputs
IR 00000
to
IR 00005
4 outputs
IR 01000
to
IR 01003
Expansion I/O Unit
(24 I/O points)
16 inputs
IR 00200
to
IR 00215
8 outputs
IR 01100
to
IR 01107
Expansion I/O Unit
(16 output points)
0 inputs
16 outputs
IR 01200
to
IR 01215