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44
Connecting to the RS-232C Port at the Host
Section 2-6
2-6
Connecting to the RS-232C Port at the Host
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.
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.
2-6-1
Host Types and Settings
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.
Using the Host Link Method
Compatible Hosts
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.
RS-232C cable (15 m max.)
Host
NT20
PLC
Series
Units with Built-in Host Link
Function
CPU Units Connectable with
Host Link Units or Expansion
Communications Board
Host Link Unit/
Communications
Board
Connectable
to
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
CS1G-CPU42/43/44/45-EV1
CS1H-CPU63/64/65/66/67-EV1
CS1G-CPU42H/43H/44H/45H
CS1H-CPU63H/64H/65H/66H/
67H
CS1W-SCU21
CS1W-SCB21
CS1W-SCB41
CS1G
CS1H
CS1G-H
CS1H-H
CJ Series
CJ1G-CPU44/45
CJ1G-CPU44/45
CJ1W-SCU41
CJ1G
Summary of Contents for NT20
Page 1: ...Programmable Terminal Cat No V091 E1 01 NT20 USER S MANUAL ...
Page 2: ...NT series Programmable Terminal User s Manual Produced March 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 15: ...xvi ...
Page 21: ...xxii EC Directives 6 ...
Page 37: ...16 Before Operating Section 1 6 ...
Page 153: ...132 Transferring the Resource Data Section 3 11 ...
Page 185: ...164 Numeral Setting Section 4 8 ...
Page 267: ...246 Key to Programs Section 6 8 ...
Page 281: ...260 Specifications Appendix A ...
Page 285: ...264 Transporting and Storing PTs Appendix C ...
Page 303: ...282 Function Restrictions Depending on the Support Tool Appendix I ...
Page 307: ...286 Index ...
Page 309: ...288 Revision History ...