FANUC Alarm SSPC-156 — STOP Invalid host name (WT,C:…)

Manufacturer wording — STOP Invalid host name (WT,C:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SSPC-156 (“STOP Invalid host name (WT,C:…)”): Specified condition has invalid host name. First check: Input correct host name.

Updated 2026-09-17 · LogrobotLM reference

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 →