4-7
4 Support Software
CJ2 CPU Unit Hardware User’s Manual
4-2 Connection Methods
4
4-2-1 Connecting by USB
Based on USB specifications, the following restrictions apply when connecting a personal computer
and components.
• Only one CJ2 CPU Unit can be connected by USB to a single personal computer. It is not possible to
connect multiple CJ2 CPU Units simultaneously.
• Do not remove the USB cable while connected online. The application must be offline before the
cable is removed. If the cable is removed while connected online, one of the following situations will
occur depending on the operating system.
• Windows 2000/XP
The Support Software online status will not be restored by simply re-inserting the USB cable.
Once the Support Software has gone offline, the cable must be re-inserted and the Support Soft-
ware online connection operation must be repeated.
•Windows 98/Me
If the USB cable is removed while connected online, a blue error screen may be displayed. If that
occurs, the personal computer must be restarted.
Additional Information
The USB port on a computer can be connected to the PLC serial port (RS-232C) by using
CJ1W-CIF31 USB-Serial Conversion Cable. (The USB driver for the CJ1W-CIF31 must be
installed.)
Refer to A-5 Installing the USB Driver for the installation procedure for the USB driver.
Restrictions on Connecting by USB
RS-232C port,
D-sub connector
(9-pin, female)
D-sub connector
(9-pin, female)
Recommended cable:
XW2Z-200S-CV/500S-CV or XW2Z-200S-V/500S-V
*1
D-sub connector
(9-pin, male)
D-sub connector
(9-pin, male)
CS-CJ-series PLC
CS1W-CIF31
USB A plug connector,
male
*1 Only a Host Link connection is possible.
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