LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm SYST-216 — DCS DCSALM

Error
Hardware
DCS safety inputs
Controllers
R-30iA (this generation only)
FANUC class
PAUSE

FANUC SYST-216 (“DCS DCSALM”): A DCS DCSALM occurred. First check: Set $DCS_CFG.$TEST_PARAM1 to 0.

Updated 2026-10-22 · LogrobotLM reference

Description

A DCS DCSALM occurred. This occurs only when $DCS_CFG.$TEST_PARAM1 bit 0 is 1.

Remedy

Set $DCS_CFG.$TEST_PARAM1 to 0.

Field diagnosis

A DCS alarm was generated by the DCS test mode.

What to check

  • Disable the DCS test parameter.
  • Note: Same origin as SYST-214.

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 →