Omron SYSMAC CP Series, Руководство пользователя

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6-3
6 I/O Allocation
CP2E CPU Unit Software User’s Manual(W614)
6-1
Allocat
ion
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Inp
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its an
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6
6-1-2 I/O Allocation Concepts
The CPU Unit automatically allocates I/O bits to the Expansion I/O Units and Expansion Units, if con-
nected when the power supply is turned ON.
It is not necessary to specify I/O bits allocation.
z
Input bits are allocated from CIO 0 and output bits are allocated from CIO 100
The first word from which input bits are allocated is CIO 0. The first word from which output bits are allo-
cated is CIO 100. These cannot be changed.
z
Words Allocated by the System and the Number of Connected Units
The starting words for inputs and outputs are predetermined for a CP2E CPU Unit. Input bits in CIO 0,
or CIO 0 and CIO 1, and output bits in CIO 100, or CIO 100 and CIO 101, are automatically allocated to
the built-in I/O on the CPU Unit.
The words from which bits are allocated by the system and the number of Expansion I/O Units and
Expansion Units that can be connected are given in the following table.
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Application Example: CPU Unit with 40 I/O Points
For a CPU Unit with 40 I/O points, a total of 24 input bits are allocated to the input terminal block. The
bits that are allocated are input bits CIO 0.00 to CIO 0.11 (i.e., bits 00 to 11 in CIO 0) and input bits CIO
1.00 to CIO 1.11 (i.e., bits 00 to 11 in CIO 1).
In addition, a total of 16 output bits are allocated to the output terminal block. The bits that are allocated
are output bits CIO 100.00 to CIO 100.07 (i.e., bits 00 to 07 in CIO 0) and output bits CIO 101.00 to CIO
101.07 (i.e., bits 00 to 07 in CIO 1).
6-1-2 I/O Allocation Concepts
6-1-3 Allocations on the CPU Unit
CPU Unit
Allocated words Number of Expansion
Units and Expansion I/O
Units connected
Input Bits Output Bits
14 or 20 I/O Point
CPU Unit CIO 0 CIO 100 0 Unit
3 0 or 40 I/O Point
CPU Unit
CIO 0 and CIO 1 CIO 100 and CIO 101 3 Units
60 I/O Point CPU
Unit CIO 0, CIO 1 and CIO 2 CIO 100, CIO 101 and CIO 102 3 Units
15 14 13 11 12 09 08 07 06 05 04 02 01 00
O u tp u t b its: 16
03 10
Cannot b e u sed
CPU Unit w ith 40 I/O Points
24 inp u ts
Inp u t Bits
Inp u t Bits
O u tp u t Bits
O u tp u t Bits
CIO 0 (CIO 0.00 to CIO 0.11)
CIO 1 (CIO 1.00 to CIO 1.11)
CIO 100 (CIO 100.00 to CIO 100.07)
CIO 101 (CIO 101.00 to CIO 101.07)
16 o u tp u ts
CIO 0
CIO 1
CIO 100
CIO 101
Inp u t b its: 24
Cannot b e u sed