Expansion Units - Omron CP1H CPU Operation Manual

I/O Area and I/O Allocations

Expansion Units

Analog I/O Units
Analog Input Units
154
Units with 16 Output Points (CP1W-16E@@/CPM1A-16E@@)
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).
15 14 13 12
Output n
Can be used as work bits.
bits
n+1
Two words (16 bits) are allocated to a 16-output Expansion Output Unit. No
input words are allocated. Output bits 08 to 15 can be used as work bits.
Units with 20 I/O Points (CPM1A-20ED@@/20EDT/20ED@@)
Twelve input bits are allocated in one word (bits 00 to 11 in CIO m). Eight out-
put bits are allocated in one word (bits 00 to 07 in CIO n).
15 14 13
m
Input bits
Do not use.
n
Output bits
Can be used as work bits.
One input word (12 bits) and one output word (8 bits) are allocated for a 20-
point Expansion I/O Unit.
Input bits 12 to 15 are always cleared by the system and cannot be used as
work bits. Output bits 08 to 15, however, can be used as work bits.
Units with 32 Output Points (CP1W-32E@@)
Thirty-two output bits are allocated in four words (bits 00 to 07 in CIO n, bits
00 to 07 in CIO n+1, bits 00 to 07 in CIO n+2 and bits 00 to 07 in CIO n+3).
15 14 13 12
Output n
bits
n+1
Can be used as work bits.
n+2
n+3
Four words (32 bits) are allocated to a 32-output Expansion Output Unit. No
input words are allocated. Output bits 08 to 15 can be used as work bits.
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).
15 14 13
Input
Do not use.
bits
m+1
n
Output
Can be used as work bits.
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.
Unit
CP1W-MAD11
CPM1A-MAD11
CPM1A-MAD01
CP1W-AD041
CPM1A-AD041
11 10 09 08 07 06
12 11 10 09 08 07
11 10 09 08 07 06
12 11 10 09 08 07
Input words
2 words CIO m to CIO m+1 1 word
4 words CIO m to CIO m+3 2 words CIO n to CIO n+1
Section 4-2
05 04 03 02 01
06 05 04 03 02 01
05 04 03 02 01
06 05 04 03 02 01
Output words
CIO n
00
00
00
00