PLCS7-1200Verified · sol.ls-electric.com
S7-1200 16#1234 — Diagnostic buffer entry
Warning — monitor· AUTO-RESET
CAUSE
Why does it occur?
A general event logged in the CPU diagnostic buffer — trace the cause via the code and time stamp.
REMEDY · Step by step
How to fix it?
Check the detailed text in the diagnostic buffer of TIA Portal online diagnostics, then take follow-up action.
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Siemens AG manual. For accurate and complete information, always consult the official manual.
Open official manual ↗CALLBACK