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1-4-2
Connecting CJ-series CJ2 CPU Units, CP-series PLCs and NSJ-series Controllers
1-4-2
Connecting CJ-series CJ2 CPU Units, CP-series PLCs and
NSJ-series Controllers Using Commercially Available USB
Cable
A computer running the CX-One can be connected to the peripheral USB port on a
CJ-series CJ2 CPU Units or a CP-series PLC or to the USB connector (SLAVE) on an
NSJ-series Controller using commercially available USB cable. The procedures are
provided in this section.
Restrictions when Connecting by USB
Due to USB specifications, the following restrictions apply when connecting a
computer running Support Software.
• A USB connection is possible for only one CP-series PLC from a single computer. It
is not possible to connect multiple CP-series PLCs or an NSJ-series Controller
simultaneously.
• Do not disconnect the USB cable while the Support Software is connected online.
Before disconnecting the USB cable, be sure to place the application in offline status.
If the USB cable is disconnected while online, the situations described below will
occur.
The Support Software cannot be returned to online status by simply reconnecting the
USB cable. First return the Support Software to offline status, and then reconnect the
USB cable. Then perform the online connection procedure for the Support Software.
CJ-series CJ2 CPU Units
The peripheral USB port (conforming to USB 1.1, B connector) is a dedicated port for
connecting Support Software, such as the CX-Programmer.
Commercially
available USB
cable
1-4
PLC Connecting Cables
Using Commercially Available USB Cable
1-21
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