Security" Tab - Siemens SIMATIC S7-400 Operating Instructions Manual

See also
Configuration in the SCT (Page 55)
4.7.3

"Security" Tab

Enabling the Security functions
In this tab, you can enable the Security functions of the CP.
The enabling of the Security functions releases additional parameters in the following further
tabs of the properties dialog.
● SNMP
● Web (The entire tab is blocked if the Security functions are siabled.)
● Time-of-day synchronization
● OPC UA
Requirement for configuring the Security functions
The Security Configuration Tool (SCT) is installed. You will find the required version in the
section Configuration (Page 19).
"Security configuration"
Enable security
If the option is disabled, the Security parameters in other tabs are disabled. As a result only
non secure protocol variants (NTP, SNMPv1, HTTP) are supported.
To be able to make Security settings, select the "Enable security" check box.
Result:
● The Security functions in the individual tabs become active.
● The "Edit" > "Security Configuration Tool" menu becomes active.
You configure further Security functions in the SCT.
Note
Loss of the Security configuration
If you disable the "Activate security" check box again after saving a Security configuration,
this has the following effects:
• Alll theSecurity settings you have made are lost and you will need to make them again if
you enable the check box again.
• The CP is no longer displayed in the SCT.
• The settings for users and time-of-day synchronization that existed prior to enabling
Security are restored.
CP 443-1 OPC UA
Operating Instructions, 01/2017, C79000-G8976-C427-02
Configuration and operation
4.7 Configuration of the CP in STEP 7 V5
47