New Functions in Version V4.02
2 | Creating and Editing Projects |
New Function: Password Protection for Access to Programmable Controllers
With the aid of password protection you can:
Protect the user program and its data in the CPU against unwanted changes (write protection),
Protect the
Inhibit online functions which would interfere with the process.
You can only assign a password to a module if the module supports this function.
If you want to protect a module with a password, you must define the level of protection and the password in the module parameter assignment, and then download the modified parameters to the module (see Chapter 3, New CPU Parameters).
If a password is required before an online function can be executed, the dialog box ªEnter Passwordº is displayed. By entering the correct password you are authorized to access modules which have been assigned parameters specifying a special level of protection. You can then establish online connections to the protected module and execute the online functions which have been protected.
You can use the menu command PLC Access Rights to open the ªEnter Passwordº dialog box directly. Here you can specify that the password entered should be used for all future access to protected modules. The dialog box will then only appear if this password is invalid.
Additional Settings in the SIMATIC Manager
The tabbed dialog box which you open with the menu command Options Customize has been expanded and restructured. For example, you can now select a ªQuick Viewº when diagnosing hardware (see Chapter 10).
Supplement to the STEP 7 User Manual V4.0 | 3 |
