Examples Of Expansion Unit And Expansion I/O Unit Allocation - Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual

I/O Allocation for CPM2C PCs

5-3-4 Examples of Expansion Unit and Expansion I/O Unit Allocation

Example: CPU Unit with 20 I/O Points + Expansion I/O Unit with 24 I/O Points
CPU Unit Expansion I/O Unit
(20 I/O points) (24 I/O points)
12 inputs 16 inputs
IR 00000 IR 00100
to to
IR 00011 IR 00115
8 outputs 8 outputs
IR 01000 IR 01100
to to
IR 01007 IR 01107
Bits 15
IR 000
Inputs
IR 001
IR 010
Outputs
IR 011
Temperature Sensor Units
CompoBus/S I/O Link Unit
Note Input bits 00 to 07 in word (m+1) are for outputs from the Master. Output bits 00 to
07 in word (n+1), are for inputs to the Master.
Up to 5 Expansion Units or Expansion I/O Units can be connected to a CPM2C
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.
Although I/O bits are allocated automatically, it is necessary to ensure that both
the number of input words and the number of output words do not exceed 10. For
example, the Analog I/O Unit and Temperature Sensor Unit require 2 input
words and so it is not possible to connect 5 of these Units.
14 13 12 11 10
Do not use
CPM2C-TS001/TS101
2 temperature inputs
Input 0: word (m+1)
Input 1: word (m+2)
No outputs
CPM2C-SRT21
8 inputs
Input: word (m+1)
8 outputs
Output: word (n+1)
09 08 07 06 05
Section
04 03 02 01 00
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