Omron Programmable Terminals NT631 Setup Manual page 76

Connecting to the RS-232C Port at the Host
CS/CJ-series CPU Unit: CS1G/H-CPU@@-E(V1), CS1G/H/D-CPU@@H
Connect to the built-in RS-232C port of the CPU Unit, or the RS-232C port of
the Communications Board. Note that the connection to a peripheral port
must be made via an RS-232C adapter (CS1W-CN118) specially designed for
connecting to a peripheral port.
PLC Setup
When connecting to a CS/CJ-series CPU Unit, set the following communica-
tions conditions for the PLC Setup area. Since the settings shown below are
the PLC default settings for the CPU Unit, no change to the PLC Setup is nec-
essary as long as the communications speed is maintained at 9600 bps.
Item
Communications speed
Stop bits
Parity
Data length
Unit No. for the host link
*1
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT631/NT631C. For details, refer to 6-7-2 Setting the
Host Link Method (page 155).
When the communications speed is set to 19200 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.
For details on the PLC Setup, refer to the SYSMAC CS Series Operation
Manual (W339) or the SYSMAC CJ Series Operation Manual (W393).
Using the CPU Unit's Built-in RS-232C Port
Word # Writing Value
160 8000
161 0000
0007
166 0000
Using the CPU Unit's Peripheral Port
Word # Writing Value
144 8000
145 0000
0007
150 0000
Setting the Front Switches
Set the CPU Unit's DIP switches to 4 or 5 in accordance with the port NT631/
NT631C is connected to. An example of a CS-series CPU Unit is shown
below.
CJ1G/M-CPU@@, CJ1G/H-CPU@@H
Setting at Host
Set the same speed as set at the NT631/NT631C(*1)
2 stop bits
Even
ASCII 7 bits
00
Host link mode, data length 7 bits,
2 stop bits, even parity
Communications speed: 9600 bps.
Communications speed: 19200 bps.
Unit #00
Host link mode, data length 7 bits,
2 stop bits, even parity
Communications speed: 9600 bps.
Communications speed: 19200 bps.
Unit #00
Section 4-1
Settings
Settings
59