22 Rockwell Automation Publication ENET-UM004B-EN-P - November 2015
Chapter 2      Configure EtherNet/IP and USB Drivers on Your Workstation
Configure the USB 
Communication Driver in 
RSLinx Classic Software
To use the USB port, you must have RSLinx Classic software, version 2.51 or 
later, installed on your computer. The Logix Designer application version that 
you use with your application can require a higher version of RSLinx Classic 
software. For more information, see your programming software requirements.
You can download programs to controllers and configure other devices accessible 
via the communication module through this connection.
To configure RSLinx software to use a USB port, you first install the USB driver. 
To install the USB driver, follow these steps.
1. Connect one end of the USB cable to your workstation, and the other end 
to the USB port on the communication module. 
The RSLinx Found New Hardware Wizard dialog box appears.
2. Click Install the software automatically (recommended).
3. Click Next.
ATTENTION: The USB port is intended for temporary, local programming 
purposes only and is not intended for permanent connection. The USB cable is 
not to exceed 3.0 m (9.84 ft) and must not contain hubs.
WARNING: Do not use the USB port in hazardous locations.
IMPORTANT
Do not simultaneously load firmware for multiple modules through a USB port. 
If you do, one or more of the firmware loads can fail in the middle of the 
loading process.