Maintenance
14.6 Maintenance and repair
S7-1500R/H redundant system
470 System Manual, 01/2024, A5E41814787-AF
Password for protection of confidential configuration data
The password for protection of confidential configuration data is retained after the CPU is
reset to factory settings. The password is only deleted when the "Delete password for
protection of confidential PLC configuration data" option is set.
You can find additional information on the password for protection of confidential
configuration data in the Communication
(
https://support.industry.siemens.com/cs/ww/en/view/59192925) function manual.
Reference
You can find more information on "Reset to factory settings" in the section on memory areas
and retentivity in the function manual Structure and use of the CPU memory
(http://support.automation.siemens.com/WW/view/en/59193101), and in the STEP 7 online
help. For information on CPU memory resets, please refer to the section CPU memory reset
(Page 417).
14.6 Maintenance and repair
The R/H CPUs are maintenance-free.
Repairs to the R/H CPUs may only be carried out by the manufacturer.
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