I/O Allocation Examples With Expansion I/O Units - Omron CP1L Operation Manual

I/O Area and I/O Allocations
4-2-3

I/O Allocation Examples with Expansion I/O Units

Input bits
Output bits
CIO 0
CIO 1
CIO 2
CIO 3
Input bits
CIO 4
CIO 5
CIO 6
CIO 7
CIO 100
CIO 101
CIO 102
Output bits
CIO 103
CIO 104
CIO 105
150
Units with 40 I/O Points (CPM1A-40ED@@/40EDT/40ED@@)
Twenty-four input bits in two words are allocated (bits 00 to 11 in CIO m and
bits 00 to 11 CIO m+1). Sixteen output bits in two words are allocated (bits 00
to 07 in CIO n and bits 00 to 07 in CIO n+1).
Input
bits
m+1
n
Output
bits
n+1
Two input words (24 bits) and two output words (16 bits) are allocated to a 40-
point Expansion I/O Unit. Input bits 12 to 15 cannot be used as work bits. Out-
put bits 08 to 15, however, can be used as work bits.
Example 1: Maximum I/O Capacity
The configuration shown in this example is for the maximum I/O capacity. It
consists of a CPU Unit with 40 I/O points and three Expansion I/O Units, each
with 40 I/O points. Up to three Expansion I/O Units can be connected to a
CPU Unit with either 30, 40 or 60 I/O points.
When Expansion I/O Units with 40 I/O points are connected, control is possi-
ble for up to 160 I/O points, including 96 inputs and 64 outputs.
CPU Unit
(40 I/O points)
CIO 0.00 to CIO 0.11
CIO 1.00 to CIO 1.11
16 output points
CIO 100.00 to CIO 100.07
CIO 101.00 to CIO 101.07
Bit 15 14 13 12
Do not use.
Can be used as work bits.
CIO 106
CIO 107
15 14 13 12 11 10
Do not use.
Can be used as work bits.
Three Expansion I/O Units, each with 40 I/O points
CIO 2.00 to CIO 2.11
CIO 3.00 to CIO 3.11
16 output points
CIO 102.00 to CIO 102.07
CIO 103.00 to CIO 103.07
11 10 09 08 07
CPU Unit with 40 I/O points
First Expansion I/O Unit with 40 I/O points
Second Expansion I/O Unit with 40 I/O points
Third Expansion I/O Unit with 40 I/O points
09 08 07 06 05
CIO 4.00 to CIO 4.11
CIO 5.00 to CIO 5.11
16 output points
CIO 106.00 to CIO 106.07
CIO 104.00 to CIO 106.07
CIO 105.00 to CIO 105.07 CIO 107.00 to CIO 107.07
06 05 04 03 02
CPU Unit with 40 I/O points
First Expansion I/O Unit with 40 I/O points
Second Expansion I/O Unit with 40 I/O points
Third Expansion I/O Unit with 40 I/O points
Section 4-2
04 03 02 01 00
CIO 6.00 to CIO 6.11
CIO 7.00 to CIO 7.11
24 input points
16 output points
01 00