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FANUC Alarm APSH-115 — WARN can't read signal %s

FANUC APSH-115 (“WARN can't read signal %s”): The READ IO MACRO was called but the signal could not be found. First check: Check the MACRO call in the TP program.

Updated 2026-08-29 · LogrobotLM reference

Description

The READ IO MACRO was called but the signal could not be found. READ IO(signal name string, integer register number)

Remedy · Remède

Check the MACRO call in the TP program.

Frequently asked · Questions fréquentes

What does FANUC alarm APSH-115 mean?
FANUC APSH-115 (“WARN can't read signal %s”): The READ IO MACRO was called but the signal could not be found. READ IO(signal name string, integer register number)
How do you troubleshoot FANUC alarm APSH-115?
Check the MACRO call in the TP program.

Related codes / Codes liés

APSH-113WARN can't fetch signal typeAPSH-114WARN can't fetch signal numberAPSH-116WARN Reg %s could not be setAPSH-117WARN Register not defined %s

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 →