Omron CP1E CPU UNIT SOFTWARE User Manual page 95

I/O Bits Allocation with Expansion I/O Units Connected
Allocation Example: Expansion I/O Unit with 40 I/O Points (CP1W-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 in two words (bits 00 to 07 in CIO n and bits 00 to 07
in CIO n+1).
CIO m
Input bits
CIO m+1
Output bits
CIO n+1
Two input words (24 bits) and two output words (16 bits) are allocated to a 40-point I/O Unit.
Allocation Example: Expansion Input Units and Expansion Output Units
If Expansion Input Units or Expansion Output Units are connected, the input or output word not used
by an Expansion I/O Unit is allocated to the next Unit that requires it.
CPU Unit with 30 I/O Points
CIO 0.00 to CIO 0.11
Input bits
CIO 1.00 to CIO 1.05
CIO 100.00 to CIO 100.07
Output bits
CIO 101.00 to CIO 101.03
CIO 0
CIO 1
Input bits
CIO 2
CIO 3
CIO 100
CIO 101
Output bits
CIO 102
CIO 103
CIO 104
CP1E CPU Unit Software User's Manual(W480)
bit 15 14 13 12 11
Cannot be used
CIO n
Cannot be used
1st Unit:
8-point Expansion
Input Unit
CIO 2.00 to CIO 2.07
18 inputs
12 outputs
15 14 13 12 11
bit
Cannot be used
Cannot be used
10 09 08 07 06
2nd Unit:
16-point Expansion
Output Unit
No inputs
8 inputs
16 outputs
No outputs
CIO 102.00 to CIO 102.07
CIO 103.00 to CIO 103.07
10 09 08 07 06
20-point Expansion I/O Unit
16-point Expansion Output Unit
20-point Expansion I/O Unit
6 I/O Allocation
05 04 03 02 01 00
3rd Unit:
20-point Expansion
I/O Unit
CIO 3.00 to CIO 3.11
12 inputs
8 outputs
CIO 104.00 to CIO 104.07
05 04 03 02 01 00
CPU Unit with 30 I/O Points
8-point Expansion Input Unit
CPU Unit with
30 I/O Points
6
6-5