I/O Allocation For Cpm2C-S Pcs; Cpu Units; Expansion I/O Units And Expansion Units - Omron CPM2C-S100C Operation Manual

I/O Allocation for CPM2C-S PCs

4-2

I/O Allocation for CPM2C-S PCs

4-2-1

CPU Units

4-2-2

Expansion I/O Units and Expansion Units

No. of I/O Model number
8 CPM2C-8ED@
16 CPM2C-16ED@
8 CPM2C-8ER
CPM2C-8ET@
CPM2C-8ET1@
16 CPM2C-16ET@
CPM2C-16ET1@
10 CPM2C-10EDR
20 CPM2C-20EDR
24 CPM2C-24EDT@
CPM2C-24EDT1@
32 CPM2C-32EDT@
CPM2C-32EDT1@
This section shows how I/O bits are actually allocated to the input and output
terminals on the CPU Unit and Expansion I/O Units. Bits in the words that are
not allocated to I/O can be used as work bits.
Input bits are allocated starting from IR 00000 and output bits are allocated
starting from IR 01000. In the following diagram, shaded areas indicate bits
actually used for inputs or outputs.
6 inputs
IR 00000
to
IR 00005
4 outputs
IR 01000
to
IR 01003
Bits
Inputs IR 000
Outputs IR 010
Up to 3 Expansion Units or Expansion I/O Units can be connected to a
CPM2C-S PC. Input bits and output bits are automatically allocated starting
from the CPU Unit and continuing through Expansion Units and Expansion
I/O Units in the order in which they are connected. The input area consists of
the 10 words from IR 000 to 009, and the output area consists of the 10 words
from IR 010 to 019.
I/O
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
Note m: "m" denotes the last input word allocated to the CPU Unit, or to the previ-
ous Expansion Unit or Expansion I/O Unit if one is already connected.
n: "n" denotes the last output word allocated to the CPU Unit, or to the previ-
ous Expansion Unit or Expansion I/O Unit if one is already connected.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Do not use
Allocated bits
8 inputs: Word (m+1), bits 00 to 07
---
16 inputs: Word (m+1), bits 00 to 15
---
---
8 outputs: Word (n+1), bits 00 to 07
---
16 outputs: Word (n+1), bits 00 to 15
6 inputs: Word (m+1), bits 00 to 05
4 outputs: Word (n+1), bits 00 to 03
12 inputs: Word (m+1), bits 00 to 11
8 outputs: Word (n+1), bits 00 to 07
16 inputs: Word (m+1), bits 00 to 15
8 outputs: Word (n+1), bits 00 to 07
16 inputs: Word (m+1), bits 00 to 15
16 outputs: Word (n+1), bits 00 to 15
Section 4-2
Max. No. of Units
3
3
3
3
3
3
3
3
89