[Cause]
The welding equipment has been configured to use DeviceNet. A value other than ０ is set in $VENDOR_ID, DEV_TYPE, and $PROD_CODE of system variable $AWEPRR. Although configured to use DeviceNet, the hardware for DeviceNet could not be detected.
[Countermeasure]
1. Add the hardware of DeviceNet. Or choose welding equipment that does not require DeviceNet functionality.
2. When the correct welding equipment has been selected and the DeviceNet function is not required, set the system variable of the above $AWEPRR to ０ and then power on again.