Omron NT11 - 01-2004, User Manual

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35
Connection to a PLC by the Host Link (RS-232C Type)
Section 2-4
Setting the Switches on an RS-232C Adapter
When using a CPM1-CIF01 RS-232C Adapter, set the mode switch as shown
in the following diagram.
CS/CJ-series CPU Unit model: CS1G/HCPU @@ -E (-V1)
CS1G/H-CPU @@ H
CJ1G-CPU @@
Connect to the built-in RS-232C port of the CPU Unit, or the RS-232C port of
the Communication Board. Note that the connection to a peripheral port must
be made via an RS-232C Adapter (CS1W-CN118) specially designed for con-
necting to a peripheral port.
PLC Setup
When connecting to a CS/CJ-series CPU Unit, set the following communica-
tion conditions for the PLC Setup. Since the settings shown below are the
PLC default settings for the CPU Unit, no change to the PLC Setup is neces-
sary as long as the baud rate is maintained at 9,600 bps.
*1 Set the Host Link baud rate up to 115,200 bps with the memory switch at
the NT11. For details, refer to Settings the Host Link Method (page 74).
When the baud rate is set to 19,200 bps, the PLC Setup of the CPU Unit
need to be changed.
Either set the PLC Setup directly from a Programming Device (Programming
Console), or transmit the PLC Setup made at a Programming Device (CX-
Programmer) to the CPU Unit.
The settings for SW1 and SW2 depend upon the usage of the
peripheral port and RS-232C port.
•
Connecting PT to peripheral port
•
Connecting PT to built-in RS-232C port
(A device that requires non-standard communications settings
is connected to the peripheral port.)
SW1: OFF
SW2: ON
•
Connecting PT to built-in RS-232C port
(A Programming Console is connected to the peripheral port.)
SW1: OFF
SW2: OFF
Item Setting at Host
Baud rate
Set the same speed as set at the NT11
(*1)
Stop bits 2 stop bits
Parity Even
Data length ASCII 7 bits
Unit No. for the Host Link 00
CPM1
Set the mode setting switch to HOST (upper position).
CPM1-
CIF01