FANUC Alarm APSH-119 — WARN WRITE IO parm … is wrong type
Manufacturer wording — WARN WRITE IO parm %s is wrong type
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC APSH-119 (“WARN WRITE IO parm … is wrong type”): The WRITE IO MACRO was called with illegal parameters. First check: Check the MACRO call in the TP program.
Updated 2026-09-17 · LogrobotLM reference
Description
The WRITE IO MACRO was called with illegal parameters. WRITE IO(signal name string, integer value to write)
Remedy
Check the MACRO call in the TP program.
Related codes
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 →