3/9/2024 7:26 PM | |
Joined: 9/9/2015 Last visit: 10/10/2024 Posts: 728 Rating: (278) |
Hi all, I would like to share these troubleshooting steps for your reference if you faced this issue in the future. Issue: Error message indicated "Undefined password error. Please contact Siemens Support". Or "The connected CPU is being used by two processes in parallel (test mode/ download process). Stop the parallel processes and try again) PLC : Safety PLC with SIMATIC S7 F System V6.2 Up1 Background : Trying to change a safety parameter and this error message appears. Troubleshooting steps 1. close all the CFCs, MP, opened applications 2. ensure no applications are running 3. Win+R -> reset_wincc.vbs 4. wait until it finished 5. restart all engineering stations. 6. after restart. Open the project and CFC 7. Ensure CPU Lock or Keyswitch (SFC109 PROTECT) is authorized (If you have one) 8. Key in your read/write password and safety password in notepad first, copy and paste into password dialog box when you put test mode on and safety mode deactivated. 9. If there is issue again, redo the same step but with the last MP archive backup. Incident happened today and issue resolved after above troubleshooting steps. |
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