FANUC Alarm ARC-041 — STOPL Weld EQ needs DeviceNet option
FANUC ARC-041 (“STOPL Weld EQ needs DeviceNet option”): The weld equipment has been configured to use DeviceNet by setting the fields $VENDOR_ID, $DEV_TYPE, and $PROD_CODE in the system variable $AWEPRR to non-zero values. First check: Add the DeviceNet option or choose a weld equipment model which does not require DeviceNet.
Updated 2026-09-17 · LogrobotLM reference
Description
The weld equipment has been configured to use DeviceNet by setting the fields $VENDOR_ID, $DEV_TYPE, and $PROD_CODE in the system variable $AWEPRR to non-zero values. However, the DeviceNet option is not installed.
Remedy
Add the DeviceNet option or choose a weld equipment model which does not require DeviceNet. If the weld equipment model is correct and does not require DeviceNet then set the $AWEPRR fields mentioned above to zero and cycle power.
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 →