![background image](http://html1.mh-extra.com/html/omron/srm1-programing-02-2001/srm1-programing-02-2001_programming-manual_742414348.webp)
5-3
Section
I/O Allocation for CPM2C PCs
329
Temperature Sensor Units
CPM2C-TS001/TS101
2 temperature inputs
Input 0: word (m+1)
Input 1: word (m+2)
No outputs
CompoBus/S I/O Link Unit
CPM2C-SRT21
8 inputs
Input: word (m+1)
8 outputs
Output: word (n+1)
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.
5-3-4 Examples of Expansion Unit and Expansion I/O Unit Allocation
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.
Example: CPU Unit with 20 I/O Expansion I/O Unit with 24 I/O Points
Inputs
IR 000
IR 001
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Outputs
IR 010
IR 011
Do not use
Expansion I/O Unit
(24 I/O points)
16 inputs
IR 00100
to
IR 00115
8 outputs
IR 01100
to
IR 01107
CPU Unit
(20 I/O points)
12 inputs
IR 00000
to
IR 00011
8 outputs
IR 01000
to
IR 01007
Bits