2711-K5A9L3 A-B Digital Input Module
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The controller has a USB port that uses a Type B receptacle. The port is USB 2.0 compatible and runs at 12 Mbps. To use the USB port of the controller, you must have RSLinx® software, version 2.56 or later, installed on your workstation. Use a USB cable to connect your workstation to the USB port. With this connection, you can update firmware and download programs to the controller directly from your workstation.
Use the mode switch to change the operation mode. The controller mode switch provides a mechanical means to enhance controller and control system security. You must physically move the mode switch on the controller to change its operating mode from RUN, to REM, or to PROG. When the mode switch on the controller is set to RUN mode, features like online editing, program downloads, and firmware updates are prohibited. See Table 7 for a complete list of prohibited features. The physical mode switch can complement other authorization and authentication methods that similarly control user-access to the controller, such as the following: • Logix CPU Security tool • FactoryTalk® Security service During runtime, we recommend that you place the controller mode switch in RUN mode and remove the key (if applicable) from the switch. This can help discourage unauthorized access to the controller or potential tampering with the program of the controller, configuration, or device firmware. Place the mode switch in REM or PROG mode during controller commissioning and maintenance and whenever temporary access is necessary to change the program, configuration, or firmware of the product.
The structure and details of the product：
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