Creations of Siemens 840D HMI Interface

The human-machine interface of SINUMERIK 840D is a standard operative interface,but it is not unpractical and unacceptable for some special users.This paper mainly introduced the ways how to create human-machine interface,and described the ways that OEM and HMI software are taken as a developing tool,and the language dynamic linking database suited for Siemens CNC system established by using Microsoft VC and the user's special interface taken into Siemens system by Microsoft VB advanced language,so as to realize to create the professional HMI interface on common CNC system.