Omron SYSMAC C Series User Manual

System expansion and peripherals
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(83G2A5-RM001-
A-10
Rack No. 0
System example 3
In this system, the remote i/O master unit is connected to a C500 so that
this PC can transmit and receive data to/from the C20 at a remote
location.
SYSBUS (optical-fiber cable) SYSBUS (optical-fiber cable)
C500 remote I/O pester unit
M
C20
CPU
= i;
c20 VO link C20 CPU C20 expansion
C20 1/0 link
unit VO unit unit
(8G2C7-LK011) {3G207-
(channels 28 and 29) LKO11)
(channels 30
and 31)
Protective cap
Explanation
In this example, channels 0 to 27 have been automatically assigned to the
C500, which has a remote I/O master unit installed.
To
establish
communication
between
the
nearest
C20
(via
its
I/O
link
unit)
and
the
C500,
channels
28
and
29
are
manually
assigned.
This
assignment
is
from
the
perspective
of
the
C500.
This nearest C20 is “C20 (A)” in the figure.
For
“C20
(B)”,
channels
30
and
31
are
manually
assigned.
This
channel
designation
is also
from
the
perspective
of
the
C500.
The
distinction
about
“perspective”
has
been
made
for
this
reason:
when
you
assign
the
channels
of
the
C20s,
the
assigned
numbers
will
be
different
from
those
of
the
higher-level
PC—but
the
channels
themselves
are
the
same.
In
the
example,
from
the
C20's
perspective,
channels
01
(input)
and
06
(output)
are
assigned
to
the
I/O
link
unit connected
to
the
C20
(A).
These
channels
are
the
same
as
channels
28
and
29
of
the
C500.
To
the
I/O
link
unit
connected
to
C20
(B),
channels
03
(input)
and
08
(output)
are
assigned.
These
are
the
same
as
channels
30
and
31
of
the
C500.

Omron SYSMAC C Series Specifications

General

Brand	Omron
Model	SYSMAC C Series
Category	Controller
Language	English