Compobus/S I/O Link Units - Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual

CompoBus/S I/O Link Units

3-3

CompoBus/S I/O Link Units

CompoBus/S Master Unit
(or SRM1 CompoBus/S
Master Control Unit)
Special Flat Cable, 2-core VCTF cable, or 4-core VCTF cable
(You cannot mix Special Flat Cable, 2-core VCTF cable, and 4-core VCTF cable. Use only one type of cable.)
Master PC (CS Series)
CPU Unit
I/O memory
Output
2000
Input
2004
214
The CPM1A, CPM2A, or CPM2C (including the CPM2C-S) PCs can function as
Slaves to a CompoBus/S Master Unit (or SRM1 CompoBus/S Master Control
Unit) when a CompoBus/S I/O Link Unit is connected. The CompoBus/S I/O Link
Unit establishes an I/O link of 8 inputs and 8 outputs between the Master Unit
and the PC.
Note For the CPM1A, a CPM1A CPU Unit with 30 or 40 I/O points must be used to
connected the CompoBus/S I/O Link Unit. It cannot be connected to a CPM1A
CPU Unit with 10 or 20 I/O points.
CPM1A/CPM2A CPU Unit
Cable
Special Flat Cable
VCTF cable
From the standpoint of the CPU Unit, the 8 input bits and 8 output bits allocated
to the CompoBus/S I/O Link Unit are identical to input and output bits allocated to
Expansion I/O Units even though the CompoBus/S I/O Link Unit does not control
actual inputs and outputs. The input and output bits allocated to the Compo-
Bus/S I/O Link Unit are one side of an I/O link between the slave CPU Unit and
the CPU Unit to which the Master Unit is connected.
CompoBus/S
Master Unit
Unit No. 0
8 bits
8 bits
CPM1A-SRT21
CompoBus/S
I/O Link Unit
Model
SCA1-4F10 4-core flat cable, 0.75 mm
 2 cores or 0.75 mm
2
--- 0.75 mm
(JIS C 3306)
CPM1A, CPM2A, or CPM2C
CPU Unit with 30 I/O points
I/O memory
8 bits
Input
IR 002
8 bits
Output
IR 012
Section
CPM2C
CPM2C-SRT21
or CPM2C-S
CompoBus/S
CPU Unit
I/O Link Unit
Specifications
2
 4 cores
2
CompoBus/S
I/O Link Unit
Node
number:
0
3-3