Service functions (laptop via COM interface to a Q8) Welding parameter reading, modification, writing and storage New welding parameters compiled and written to Q8 Alarm-messages read, evaluated and deleted Measured values read, evaluated and stored Network functions (Q8 controls connected by Ethernet to central PC) All service functions Networking by patent-free LAN interface Q8 welding parameters supplied for documentation All parameter modifications are indicated and documented Welding parameters can be combined at will to new Q8 Data recording functions (welding data for all PC seams archived)