Omron CP1H-CPU - 05-2006, Operation Manual

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I/O Area and I/O Allocations
Section 4-2
4-2-3 Allocations to CP1H Y CPU Units (12 Inputs/8 Outputs)
Bits are allocated to a Y CPU Unit in discontinuous positions, as shown in the
figure below, due to allocations for the pulse I/O terminals.
Input Bit Allocations
As shown above, a total of 12 input bits in CIO 0 and CIO 1 are allocated for
the Y CPU Unit. Unused bits in CIO 0 and CIO 1 are always cleared and can-
not be used as work bits.
Output Bit Allocations
As shown above, a total of 8 output bits in CIO 100 and CIO 101 are allocated
for the Y CPU Unit. Unused bits can be used as work bits.
4-2-4 Allocations to CPM1A Expansion Units and Expansion I/O Units
If one or more CPM1A Expansion Units or Expansion I/O Units are con-
nected, words are automatically allocated in the order the Units are connected
starting with CIO 2 for input bits and CIO 102 for the output bits. The number
of I/O words allocated depends on the model of the Expansion Unit or Expan-
sion I/O Unit.
Words are allocated automatically when the power supply to the CPU Unit is
turned ON. The I/O Area addresses used in ladder programming will no
longer agree with the actual wiring of the I/O terminals if the order in which the
Units are connected is changed.
Inputs
Outputs
CIO 0.00, CIO 0.01, CIO 0.04,
CIO 0.05, CIO 0.10, CIO 0.11,
CIO 1.00 to CIO 1.05
CIO 100.04 to CIO 100.07
CIO 101.00 to CIO 101.03
12 inputs
8 outputs
CPU Unit
CIO 2.00 on
CIO 102.00 on
Expansion Unit
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
CIO 0
CIO 1
CIO 2
CIO 3
CIO 4
CIO 5
CIO 6
CIO 7
12 input bits allocated to Y CPU Unit
Input bits allocated to CPM1A Expansion I/O Units
Allocation area for 8-input Unit
Allocation area for 12-input or 24-input Unit
Do not use.
Do not use.
Do not use.
Do not use.
Do not use.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
CIO 100
CIO 101
CIO 102
CIO 103
CIO 104
CIO 105
CIO 106
CIO 107
8 outputs allocated to Y CPU Unit
Allocation area for 8-output or 16-output Unit
Outputs allocated to
CPM1A Expansion I/O Units
Can be used as work bits.
Can be used as work bits.
Can be used as work bits.
Do not use.