Connecting To The Rs-232C Port At The Host; Host Types And Settings - Omron NT20S-ST121B-EV3 User Manual

Connecting to the RS-232C Port at the Host

2-6

Connecting to the RS-232C Port at the Host

2-6-1

Host Types and Settings

Using the Host Link Method
Compatible Hosts
PLC Units with Built-in Host Link
Series Function
CS Series CS1G-CPU42/43/44/45-EV1
CS1H-CPU63/64/65/66/67-EV1
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/
67H
CJ Series CJ1G-CPU44/45
44
The method for connecting directly between the RS-232C port of the PT and
the RS-232C port of the host is as follows.
The following discussion is focused on the connection method to OMRON
PLCs.
Direct Connection between RS-232C Ports with RS-232C Cable
This is the easiest connection method. Depending on the host to which the
connection is to be made, it may be possible to use OMRON cables with con-
nectors.
NT20
Note The CS/CJ-series CPU Unit cannot be connected with the 1:1 NT link
method. Use the 1:N NT link method instead of making a 1:1 connection. For
details, refer to Using the 1:N NT Link on page 60 or Using the High-speed
1:N NT Links on page 65.
The types of host that can be connected to a PT by using the RS-232C ports
of both devices, and the settings to be made at the host, are described here.
Some models and series of OMRON PLCs have the Host Link function built
in.
In the CS-series (including the CS1-H PLCs), CJ-series, and CQM1H PLCs,
the Host Link method can be used by installing a Serial Communications
Board or Unit. In addition, some C200HX/HG/HE(-Z)E have an integral CPU
Unit that can be connected in the Host Link method by installing a Communi-
cations Board.
Check the model and series of the PLC, the type of installed Serial Communi-
cations Board, Serial Communications Unit, or Host Link Unit before making a
connection.
The hosts that can be connected to the NT20 by the Host Link method using
the RS-232C ports of both Units are indicated in the table below.
CPU Units Connectable with
Host Link Units or Expansion
Communications Board
CS1G-CPU42/43/44/45-EV1
CS1H-CPU63/64/65/66/67-EV1
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/
67H
CJ1G-CPU44/45
RS-232C cable (15 m max.)
Section 2-6
Host
Host Link Unit/
Communications
Board
CS1W-SCU21
CS1W-SCB21
CS1W-SCB41
CJ1W-SCU41
Connectable
to
CS1G
CS1H
CS1G-H
CS1H-H
CJ1G