Omron CP1H CPU Operation Manual page 69

Connecting Programming Devices
Connection Method
Computer
Model Connector
IBM PC/AT or D-Sub 9 pin,
compatible male
Serial Communications Mode
Note
Connect the Programming Device using the Connecting Cable that is appro-
priate for the serial communications mode of the computer and CPU Unit.
Connecting Cable
Model Length
XW2Z-200S-CV 2 m
XW2Z-500S-CV 5 m
Serial
communications
mode
Peripheral bus This is the faster mode, so it is
(toolbus) generally used for CX-Pro-
grammer connections.
• Only 1: 1 connections are
possible.
• When a CP1H CPU Unit is
used, the baud rate is auto-
matically detected by the Sup-
port Software.
Host Link A standard protocol for host
(SYSWAY) computers with either 1: 1 or 1:
N connections.
• Slower than the peripheral
bus mode.
• Allows modem or optical
adapter connections, or long-
distance or 1: N connections
using RS-422A/485.
When a Serial Communications Option Board is mounted in Option Board
Slot 1, it is called "Serial Port 1." When mounted in Option Board Slot 2, it is
called "Serial Port 2."
CP1H CPU Unit
Connector
D-Sub 9 pin, female
(With a CP1W-CIF01 RS-
232C Option Board
mounted in Option Board
Slot 1 or 2.)
Features CPU Unit setting method
Turn ON pins SW4 (Serial Port
1) and SW5 (Serial Port 2) on
the DIP switch on the front
panel of the CPU Unit. These
settings enable connection by
peripheral bus regardless of the
serial port settings in the PLC
Setup.
Turn OFF pins SW4 (Serial Port
1) and SW5 (Serial Port 2) on
the DIP switch on the front
panel of the CPU Unit.
The mode will then be deter-
mined by the serial port set-
tings in the PLC Setup. The
default settings are for Host
Link with a baud rate of 9,600
bits/s, 1 start bit, data length of
7 bits, even parity, and 2 stop
bits.
Section 1-3
Serial
communications
mode
Peripheral bus or Host
Link (SYSWAY)
35