LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm DMER-022 — Invalid file size

FANUC DMER-022 (“Invalid file size”): The file size specified in the Data Monitor schedule is invalid. First check: Make sure the file size specified in the Data Monitor schedule is not negative and is less than the size of the media you are using.

Updated 2026-09-17 · LogrobotLM reference

Description

The file size specified in the Data Monitor schedule is invalid. This error is reported if the file size specified is negative or larger than the media you are using.

Remedy

Make sure the file size specified in the Data Monitor schedule is not negative and is less than the size of the media you are using. If you specify the file_size to be zero, Data Monitor only checks that there is at least one free block available

Related codes

DMER-020STOPL Record buffer limitDMER-021STOPL Not enough device memory freeDMER-023File is incompleteDMER-024WARN Data is not saved

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →