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Siemens SINUMERIK Controller
PLC · Intermediate · 30-120 minutes
Siemens 400201 - PLC STOP due to DB loading in the RUN state: DB
An existing DB was reloaded in the RUN state Control reaction: Alarm display.
400201
Siemens 400201 - PLC STOP due to DB loading in the RUN state: DB
PLC STOP due to DB loading in the RUN state: DB
An existing DB was reloaded in the RUN state Control reaction: Alarm display.
Safety
- Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.
Common Causes
- An existing DB was reloaded in the RUN state
Troubleshooting Steps
- 1Restart required.
- 2Switch control OFF - ON
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Always verify with your machine manual or a certified technician before performing service procedures.