Siemens Simatic S7-1200

Common Troubleshooting for SIEMENS SIMATIC S7-1200 PLC:

1. Power Issues：
Symptoms: PLC won't start or shuts down.
Solution: Check power supply and cables.

2. Communication Problems:
Symptoms: No communication with devices.
Solution: Verify wiring and communication settings.

3. I/O Module Failures:
Symptoms: Inputs/Outputs not responding.
Solution: Check I/O connections and module condition.

4. Program Errors:
Symptoms: Program not running properly.
Solution: Review and reload program.

5. Overheating:
Symptoms: PLC shuts down due to heat.
Solution: Improve ventilation and check cooling.