LogrobotLM

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FANUC Alarm DNET-064 — WARN Connection error

FANUC DNET-064 (“WARN Connection error”): An error has occurred when attempting connection to the specified device. First check: Check that the baud rate of the device agrees with the board baud rate.

Updated 2026-09-17 · LogrobotLM reference

Description

An error has occurred when attempting connection to the specified device.

Remedy

Check that the baud rate of the device agrees with the board baud rate. Check that the device is properly connected to the network; make sure the device is receiving power from the network. Inspect the device definition to see that the I/O type, access mode, and size of I/O are correct. Press RESET on the teach pendant to re-attempt connection.

Related codes

DNET-062WARN Bus off due to comm errorsDNET-063ERR_STOP_C Device error: Bd … MAC …DNET-065WARN Incorrect vendor IdDNET-066WARN Incorrect product code

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 →