Siemens CPU 410-5H Process Automation - 9 Special Functions of the CPU 410-5 H; Security Levels; Table 9- 1 Protection Levels of a CPU

CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
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Special functions of the CPU 410-5H
9
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 Protection levels of a CPU
CPU function
Protection level 1
Protection level 2
Protection level 3
Display of list of blocks
Access granted
Access granted
Access granted
Monitor variables
Access granted
Access granted
Access granted
Module status STACKS
Access granted
Access granted
Access granted
Operator control and monitoring
functions
Access granted Access granted Access granted
S7 communication
Access granted
Access granted
Access granted
Read time of day
Access granted
Access granted
Access granted
Set time of day
Access granted
Access granted
Access granted
Block status
Access granted
Access granted
Password required
Load in PG
Access granted
Access granted
Password required
Stop a CPU or the system
Access granted
Password required
Password required
Load in CPU
Access granted
Password required
Password required
Delete blocks
Access granted
Password required
Password required
Compress memory
Access granted
Password required
Password required
Controlling selection
Access granted
Password required
Password required
Modify variable
Access granted
Password required
Password required
Breakpoint Access granted Password required Password required
Clear breakpoint
Access granted
Password required
Password required
Memory reset Access granted Password required Password required