Security - SD Card 

Available on PLCnext Control AXC F x152 series

Accessibility

This WBM page is accessible with user role:

  • Admin
  • SecurityAdmin (from firmware 2022.0 LTS)

How to get into the WBMHow to get into the WBM

Establishing a connection to the Web-based Management (WBM):

  • Open a web browser on your computer.
  • In the address field, enter the URL https://<IP-address-of-the-controller>/wbm,
    for example: https://192.168.1.10/wbm.

For further information, see WBM.

SD Card page

If the internal flash memory is not large enough for your application, the AXC F 1152, AXC F 2152 and AXC F 3152 controllers can be operated using an SD card.

Please note the following when operating the controller with an SD card:

  • The SD card can be read with a conventional SD card reader at any time. Sensitive data on the SD card can be read if you do not physically protect the SD card against unauthorized access.
  • Ensure that unauthorized persons do not have access to the SD card.

You can activate or deactivate the support of the SD card on the SD Card page.

  • If support of the SD card is activated (default setting), the SD card is recognized during the initialization phase of the controller.
  • If support of the SD card is deactivated, the controller does not recognize the SD card.

Please note the following when operating the controller without an SD card:

If support of the SD card is activated and the controller is operated without an SD card, there is a risk of data theft or data manipulation. Unauthorized persons can insert an SD card and restart the controller. In this case, the SD card is recognized during the initialization phase of the controller. If there is an overlay file system on the internal flash memory, it will be copied to the SD card. The overlay file system on the internal flash memory will be deleted.

Furthermore, all application-specific data will be deleted from the internal flash memory. Any PLCnext Engineer projects and IP configurations stored there will no longer be available. The controller accesses the data stored on the SD card.

Recommended:

  • Deactivate support of the SD card if the controller is to be operated without an SD card.
  • Make sure that unauthorized persons do not have access to the controller.
WBM_SD-Karte.png

Status area

In the Status area, you can see whether the controller is currently being used with or without an SD card.

Operation with SD card

If you operate the controller with an SD card (display in Status area: External SD Card), any application-specific data is stored on the SD card. The overlay file system is generated on the SD card.

Operation without SD card

If you operate the controller without an SD card (display in the Status area: Internal SD Card), all application-specific data is saved to the internal flash memory of the controller. The overlay file system is generated on the internal flash memory.

Configuration area

You can activate or deactivate the support of the SD card in the Configuration area (default setting: Support external SD Card is activated).

  • Enable or disable the Support external SD Card check box.
  • To apply the setting, click the Apply button.

The setting will not take effect until the controller has been restarted.

  • To drop the setting, click the Reset button.

When operating the controller without an SD card, please note the following:

If support of the SD card is activated and the controller is operated without an SD card, there is a risk of data theft or data manipulation. Unauthorized persons can insert an SD card and restart the controller. In this case, the SD card is recognized during the initialization phase of the controller. If there is an overlay file system on the internal flash memory, it will be copied to the SD card. The overlay file system on the internal flash memory will be deleted.

Furthermore, all application-specific data will be deleted from the internal flash memory. Any PLCnext Engineer projects and IP configurations stored there will no longer be available. The controller accesses the data stored on the SD card.

Recommended:

  • Deactivate support of the SD card if the controller is to be operated without an SD card.
  • Make sure that unauthorized persons do not have access to the controller.

Note: A reset to default setting type 1 of the controller does not affect the setting whether the support of the SD card is activated or deactivated.

System Message area

In the System Message area, information on the current configuration status or changes of the configuration are displayed (Information). Potential security risks are displayed as well (Warning).

 

 

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• Published/reviewed: 2023-09-25 • Revision 059 •