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FANUC Alarm LNTK-044 — Invalid DOUT … in Sched …

Manufacturer wording — Invalid DOUT %d^3 in Sched %d^2
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC LNTK-044 (“Invalid DOUT … in Sched …”): The Digital output specified in the indicated schedule is not a valid DOUT. First check: Change the variable for Outbound DOUT to represent a valid, correctly mapped digital output.

Updated 2026-09-17 · LogrobotLM reference

Description

The Digital output specified in the indicated schedule is not a valid DOUT.

Remedy

Change the variable for Outbound DOUT to represent a valid, correctly mapped digital output.

Related codes

LNTK-042Skip outbound move LN:…LNTK-043Multiple group not supportedLNTK-045Gp … near downstrm bound …

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 →