Allocations To Expansion Units And Expansion I/O Units - Omron CP1E CPU UNIT SOFTWARE User Manual

6 I/O Allocation
6-1-4

Allocations to Expansion Units and Expansion I/O Units

Expansion Units and Expansion I/O Units connected to the CPU Unit are automatically allocated input
bits and output bits in words following those allocated to the CPU Unit.
For example, if a CPU Unit with 40 I/O points is used, CIO 0 and CIO 1 are allocated for inputs and CIO
100 and CIO 101 are allocated for outputs. Thus, words from CIO 2 onward for inputs and words from
CIO 102 onward for outputs are automatically allocated to the Expansion I/O Units and Expansion Units
in the order that the Units are connected.
Allocations to Expansion I/O Units
There are Expansion I/O Units for expanding inputs, for expanding outputs, and for expanding both
input and outputs.
I/O bits starting from bit 00 in the next word after the word allocated to the previous Expansion Unit,
Expansion I/O Unit, or CPU Unit are automatically allocated. This word is indicated as "CIO m" for input
words and as "CIO n" for output words.
Model
8-point Input Unit
8-point Relay outputs
Output Unit
Sinking transistor
outputs
Sourcing transis-
tor outputs
16-point Relay outputs
Output Unit
Sinking transistor
outputs
Sourcing transis-
tor outputs
20-point Relay outputs
I/O Units
Sinking transistor
outputs
Sourcing transis-
tor outputs
32-point Relay outputs
Output Unit
Sinking transistor
outputs
Sourcing transis-
tor outputs
40-point Relay outputs
I/O Unit
Sinking transistor
outputs
Sourcing transis-
tor outputs
6-4
No. of No. of
bits words
CP1W-8ED 8
−
CP1W-8ER None
CP1W-8ET
CP1W-8ET1
−
CP1W-16ER None
CP1W-16ET
CP1W-16ET1
CP1W-20EDR1 12
CP1W-20EDT
CP1W-20EDT1
−
CP1W-32ER None
CP1W-32ET
CP1W-32ET1
CP1W-40EDR 24
CP1W-40EDT
CP1W-40EDT1
Input bits
No. of
Addresses
1 CIO m, bits 00 to 07
None
None
1 CIO m, bits 00 to 11
None
2 CIO m, bits 00 to 11
CIO m+1, bits 00 to
11
CP1E CPU Unit Software User's Manual(W480)
Output bits
No. of
Addresses
bits words
−
None None
8 1 CIO n, bits 00
to 07
16 2 CIO n, bits 00
to 07
CIO n+1, bits
00 to 07
8 1 CIO n, bits 00
to 07
32 4 CIO n, bits 00
to 07
CIO n+1, bits
00 to 07
CIO n+2, bits
00 to 07
CIO n+3, bits
00 to 07
16 2 CIO n, bits 00
to 07
CIO n+1, bits
00 to 07