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 VARS-053 — WARN Input data pointer invalid

FANUC VARS-053 (“WARN Input data pointer invalid”): The variable data pointer specified is incorrect Or an invalid pointer was sent to the controller from a PC. First check: This is an error in the application Check all pointers being sent from the PC using RPC calls.

Updated 2026-09-17 · LogrobotLM reference

Description

The variable data pointer specified is incorrect Or an invalid pointer was sent to the controller from a PC.

Remedy

This is an error in the application Check all pointers being sent from the PC using RPC calls.

Related codes

VARS-051WARN Illegal operationVARS-052WARN Variable … convertedVARS-054WARN Sysvars - … loadedVARS-055WARN Program name is not unique

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 →