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Special functions of the CPU 410-5H
9.1
Security levels
You can define a protection level for your project in order to prevent unauthorized access to
the CPU programs. The objective of these protection level settings is to grant a user access
to specific programming device functions which are not protected by password, and to allow
that user to execute those functions on the CPU.
Setting protection levels
You can set the CPU protection levels 1 to 3 under "STEP 7/Configure Hardware".
The following table shows the protection levels of a CPU.
Table 9- 1
CPU function
Display of list of blocks
Monitor variables
Module status STACKS
Operator control and monitoring
functions
S7 communication
Read time of day
Set time of day
Block status
Load in PG
Stop a CPU or the system
Load in CPU
Delete blocks
Compress memory
Controlling selection
Modify variable
Breakpoint
Clear breakpoint
Memory reset
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
Protection levels of a CPU
Protection level 1
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Protection level 2
Protection level 3
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Access granted
Password required
Access granted
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
Password required
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