Siemens SINUMERIK 840D sl Commissioning Manual page 1026

Configuration of the system
3.5 Configuring USB interfaces
3.5 Configuring USB interfaces
The USB interfaces are activated in the as-delivered state of the PCU.
To prevent malicious software from entering the control or the system network via the USB
interfaces, you can deactivate the USB interfaces.
You can configure the USB interfaces on the Service Desktop via a command in the "Run"
dialog box or at theprompt.
Procedure
To activate or deactivate the USB interfaces, enter the relevant command on the Service
Desktop in the "Run" dialog box or at the prompt:
Table 3- 1
Factory setting:
Syntax:
Description:
Table 3- 2
Factory setting:
Syntax:
Description:
24
Disabling USB interfaces with the "sc_usb disable" command
The USB interfaces are enabled in the delivery condition.
sc_usb disable [-minutes] [all] [HOSTS...]
Without a time indication [-minutes], a permanent disable is set.
•
With time indication, the disable takes the time set in minutes.
The disable may refer to all network nodes of the system
•
network, or a list of host names or IP addresses may be
specified to which the disable should apply.
Enabling USB interfaces with the "sc_usb enable" command
The USB interfaces are enabled in the delivery condition.
sc_usb enable
With "sc_usb enable" USB storage units on permanently disabled
USB interfaces or on certain host names or IP addresses are
enabled again.
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
PCU Base Software (IM10)