LogrobotLM

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FANUC Alarm SPOT-377 — WARN Could not read file …

Manufacturer wording — WARN Could not read file %s
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SPOT-377 (“WARN Could not read file …”): Could not read file … The named file could not be read from the Device. First check: Make sure the file exists on the Device.

Updated 2026-09-17 · LogrobotLM reference

Description

Could not read file … The named file could not be read from the Device.

Remedy

Make sure the file exists on the Device.

Related codes

SPOT-375WARN Could not read stepper file …SPOT-376WARN Could not read setup file …SPOT-378WARN IWC ID jumpers incorrectSPOT-379WARN IWC slave busy

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 →