PLCS7-1200Verified · sol.ls-electric.com
S7-1200 16#8090 — Param error in comm block
Alarm — operational, inspection needed
CAUSE
Why does it occur?
Invalid value (IP, port, length, etc.) entered in the CONNECT/PARAM structure.
REMEDY · Step by step
How to fix it?
Validate the system data type (TCON_*) values and check length limits.
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.
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