TomDeWou

Hi Slysly,

important question first: does it occur on every power on?
If so, did you maybe change the CF card with EWF already enabled?

 We have encountered same issue as well , microbox pc went to system fault after checked issue in field CPU ET module power supply so when chaged the io module issue resolved but can't find the root cause, any one help me ....thanks 

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Split from RTX in STOP mode at PowerON.

Certainly! It appears that you’ve encountered a system fault with the Microbox PC after investigating the CPU ET module power supply issue. While I don’t have specific details about your setup, I can offer some general insights:

1. Root Cause Investigation:

   • When troubleshooting system faults, consider the following steps:
     • Check Wiring and Connections: Ensure that all wiring and connections are secure and properly seated.
     • Power Supply Stability: Verify the stability of the power supply to the Microbox PC and the CPU ET module.
     • IO Module Replacement: Since changing the IO module resolved the issue, inspect the replaced module for any signs of damage or malfunction.
     • Environmental Factors: Assess environmental conditions (temperature, humidity, etc.) that may affect system performance.

2. Log Files and Diagnostics:

   • Check the system logs and diagnostics for any error messages or warnings.
   • Look for patterns or recurring issues that might point to the root cause.

3. Collaborate with Experts:

   • If the issue persists, consider involving Siemens support or an experienced technician.
   • They can analyze system logs, perform deeper diagnostics, and provide targeted solutions.

Remember that system faults can have various causes, and a systematic approach is essential. If you encounter specific error codes or symptoms, share them for more accurate guidance.

Hi, problem still not solved we're struggling with this for 2 days straight

I literally have no idea why our microbox pc went to stop mode suddenly

Action taken:-

1) we changed ET power module then suddenly checked microbox bus fault cleared.

2) when same issue repeated after a day or 2, we checked a profibus connector was issue changed that connector checked bus fault cleared but it comes back and continuously bus fault on and off for few mins and went to stop mode suddenly.

3) then again we powered off the pc and power off all the stations connected within and powered on after 30 mins or so bus fault cleared. But then it returned after a hour .

Kindly refer this and give me a solution pls