 |
| Place of Origin: | Germany |
| Brand Name: | LENZE |
| Certification: | CE |
| Model Number: | E82EV222K2C |
| Minimum Order Quantity: | 1pcs |
|---|---|
| Packaging Details: | carton |
| Delivery Time: | in stock |
| Payment Terms: | T/T, Western Union, MoneyGram |
| Supply Ability: | 100pcs/week |
| LENZE: | LENZE | Material: | Iron |
|---|---|---|---|
| Temperature: | 20-90 | Color: | Black |
| Germany: | Germany | Dimension: | 80mm |
| Wire: | Wire | E82EV222K2C: | E82EV222K2C |
| a password. HMI access and access to diagnostics data is also possible. Neither blocks nor the hardware configuration can be downloaded to the CPUs without the password. |
The following actions are not possible without the password either: Change of operating state (RUN/STOP) and display of online/offline comparison status. |
| The following actions are not possible without the password either: Writing test functions and firmware updates (online |
No access (complete protection) When the CPUs have complete protection, no read or write access to the hardware configuration or |
| HMI access The same access restrictions apply to HMI access as to read access. | blocks is possible (without access authorization in the form of a password). HMI access is not possible either. |
Authentication with the correct password provides full access to the CPUs again.
Reference
You can find a list of which functions are possible in the various protection levels in the
STEP 7 online help under "Setting options for protection".Each access level allows unrestricted access to certain functions without a password, for
example identification using the "Accessible devices" function.
The default setting of the CPUs is "No restriction" and "No password protection". In order to
protect access to the CPUs, you need to edit the properties of the CPUs and set up a
password. In the default access level "Full access (no protection)", every user can read and
change the hardware configuration and the blocks. No password is configured, and no
password is required for online access.
Communication between the CPUs via the communication functions in the blocks is not
restricted by the access level of the CPUs.
Entering the correct password enables access to all the functions that are allowed in the
given level.
Note
Configuring an access level does not replace know-how protection
Configuring access levels offers a high degree of protection against unauthorized changes to
the CPU through network access. Access levels restrict the rights to download the hardware
and software configuration to the CPUs. However, blocks on the SIMATIC memory card are
not write-protected or read-protected. Use know-how protection to protect the code of blocks
on the SIMATIC memory card.
Behavior of functions in different access levels
The STEP 7 online help includes a table listing the online functions available in the various
access levelsThe STEP 7 online help includes a table listing the online functions available in the various
access leve. Activate the required protection level in the first column of the table. The green check
marks in the columns to the right of the access level show which operations are still
possible without entering the password. In the example (Figure: Possible access levels),
read access and HMI access are still possible without a password.
4. In the "Enter password" column, specify a password for the access level "Full access" in
the first row. In the "Confirm password" column, enter the selected password again to
avoid incorrect entries.
5. Assign additional passwords as required for other access levels.
6. Download the hardware configuration for the access level to take effect.
The CPUs log the following actions with an entry in the diagnostics buffer:
● Input of the correct or incorrect password
● Changes to access level configurationCPU protection takes effect for an online connection once settings have been loaded to the
CPUs. If you set a higher access level and download it to the CPU, all other online
connections will be interrupted. You will then need to establish a new online connection.
Before an online function is executed, the necessary permission is checked and, if
necessary, the user is prompted to enter a password. The password only provides access to
protected functions for the local PG/PC on which the password is entered.
Access authorization to the protected data applies for the duration of the online connection
or for as long as you have STEP 7 open. The menu command "Online > Clear access rights"
cancels the access authorization.
You can limit access to a password-protected CPU in RUN locally on the display. This
