A method for the start-up of a numerical control of machine tools or production machinery, wherein said numerical control comprises a main computer and a follow-up device, which are connected with each other via a data transmission network, wherein said follow-up device is addressable by said main computer via a logical address and a hardware address, with information regarding a physical address of said follow-up device in said data transmission network, is allocated to said logical address, the method comprising:
- sequentially requesting, in a set-up mode of operation of said main computer, allocating information regarding a logical address and a hardware address from an operator for said follow-up device and other follow-up devices to whose logical address no hardware address had been allocated;
- and
- storing said logical address and said hardware address in a memory unit after said allocating information has been performed.