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FANUC Alarm ROUT-023 — PAUSE Bad index in SUBSTR

FANUC ROUT-023 (“PAUSE Bad index in SUBSTR”): Incorrect number is specified for SUBSTR builtin routine. First check: Specify a number less than the string length.

Updated 2026-08-29 · LogrobotLM reference

Description

Incorrect number is specified for SUBSTR builtin routine.

Remedy · Remède

Specify a number less than the string length.

Frequently asked · Questions fréquentes

What does FANUC alarm ROUT-023 mean?
FANUC ROUT-023 (“PAUSE Bad index in SUBSTR”): Incorrect number is specified for SUBSTR builtin routine.
How do you troubleshoot FANUC alarm ROUT-023?
Specify a number less than the string length.

Related codes / Codes liés

ROUT-022PAUSE Bad index in ORDROUT-024PAUSE SUBSTR length less than 0ROUT-025ABORT Illegal semaphore number

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →