LogrobotLM

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FANUC Alarm PRIO-151 — WARN CNET Internal Error 0x…

Manufacturer wording — WARN CNET Internal Error 0x%x
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PRIO-151 (“WARN CNET Internal Error 0x…”): ControlNet option encountered an internal error. First check: Please look up the error to find the root.

Updated 2026-09-17 · LogrobotLM reference

Description

ControlNet option encountered an internal error. The number is the system error in hexdecimal.

Remedy

Please look up the error to find the root.

Related codes

PRIO-149WARN Invalid assignment recordedPRIO-150STOP CNET Card Init Error Bd …PRIO-152WARN CNET Invalid Scan Config Bd …PRIO-153WARN CNET Conn. Ownership Conflict

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 →