5-2
Section
I/O Allocation for CPM1/CPM1A/CPM2A PCs
318
Expansion I/O Units with 8 Inputs
8 inputs
Word (m+1), bits 00 to 07
No outputs
CPM1A-8ED
Inputs
m+1
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Do not use
Bits
Expansion I/O Units with 8 Outputs
No inputs
8 outputs
Word (n+1), bits 00 to 07
CPM1A-8ER
CPM1A-8ET
CPM1A-8ET1
Outputs
n+1
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Bits
Expansion I/O Units with 20 I/O Points
12 inputs
Word (m+1), bits 00 to 11
8 outputs
Words (n+1), bits 00 to 07
CPM1-20EDR
CPM1A-20EDR
CPM1A-20EDR1
CPM1A-20EDT
CPM1A-20EDT1
Inputs
Outputs
m+1
n+1
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Do not use
Bits
5-2-3 Expansion Units
Unit
Model number
I/O
Allocated words/bits
Max. No. of
Units
Compatible
CPU Units
Analog I/O Unit
CPM1A-MAD01
CPM1A-MAD11
Input
2 words: m+1, m+2
3 (see note 2)
CPM1
CPM1A
CPM1A-MAD11
Output
1 word: n+1
CPM1A
CPM2A
Temperature
S
U i
CPM1A-TS001
CPM1A TS101
Input
2 words: m+1, m+2
3
CPM1A
CPM2A
p
Sensor Units
CPM1A-TS101
Output
---
CPM2A
CPM1A-TS002
CPM1A TS102
Input
4 words: m+1 to m+4
1
CPM1A
CPM2A
CPM1A-TS102
Output
---
CPM2A
CompoBus/S I/O
Li k U i
CPM1A-SRT21
Input
8 bits: m+1
3
CPM1A
CPM2A
p
Link Unit
Output
8 bits: n+1
CPM2A
DeviceNet I/O
Li k U i
CPM1A-DRT21
Input
32 bits: m+1, m+2
3
CPM1A
CPM2A
Link Unit
Output
32 bits: n+1, n+2
CPM2A
Note
1. m:
“m” denotes the last input word allocated to the CPU Unit, or to the pre-
vious Expansion Unit or Expansion I/O Unit if one is already connected.