Siemens SIMATIC S7-1200 Produktinformation Seite 20

TIA Portal with CFC
STEP 7 Safety and F-CPUs with active F-functionality are not supported. You can use either CFC or the F-capability on an
F-CPU.
Also note the entry on the Internet (https://support.industry.siemens.com/cs/ww/en/view/109797803).
Resetting a (T)F-CPU to factory settings
If you want to reset a (T)F-CPU online to factory settings including formatting of the SIMATIC Memory Card and are logged in
with the password for "Full access (no protection)", the message "The device could not be reset" may be displayed.
Follow these steps:
1. Go to "Online und diagnostics".
2. Format the SIMATIC Memory Card under "Functions" with "Format memory card".
3. Enter the password for "Full access incl. fail-safe (no protection)".
Alternatively, follow these steps:
1. Go to the "Online" menu command. Select "Delete access rights".
2. Go to "Online und diagnostics".
3. Under "Functions", go to "Reset to factory settings".
4. Select "Format memory card".
5. Click on "Reset PLC".
6. Enter the password for "Full access incl. fail-safe (no protection)".
Requirements for power supplies in the event of voltage interruption
Note
To ensure adherence to IEC 61131-2 and NAMUR Recommendation NE 21, only use power packs/power supply units
(230 V AC → 24 V DC) with a mains buffering time of at least 20 ms. Observe the relevant requirement in your product
standards (e.g. 30 ms for "burners" pursuant to EN 298) as regards possible voltage interruptions. The latest up-to-date
information on PS components is available on the Internet (https://mall.industry.siemens.com).
These requirements, of course, also apply to power packs/power supply units not constructed using ET 200SP or S7-300-/400-
/1500 technology.
Display (for S7-1500 F-CPUs with display)
S7-1500 F-CPUs with display show you the following in the "Overview" menu under "Fail-safe":
• Safety mode activated/deactivated
• Collective F-signature
• Last fail-safe change
• Version of STEP 7 Safety with which the safety program was compiled.
• Information on the F-runtime groups
–
Name of F-runtime group
–
F-runtime groups signature
–
Current cycle time
–
Max. cycle time
–
Current runtime
–
Max. runtime
–
For F-CPUs FW V3.0 or higher (<= CPU 1516F-3 PN/DP), also "Remaining runtime in deactivated safety mode" is
displayed here.
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F-CPUs
A5E35635424-AM, 11/2022