Slate Tile,Rusty Slate Tile,Yellow Slate Tile Hundreds Flooring Co., Ltd , http://www.chglassmosaic.comOur factory has developed a double-column CNC vertical lathe for a user of Baoji. The machine adopts Siemens 840D CNC system, which has a vertical tool holder and a side tool holder. It requires two tool holders to participate in workpiece cutting at the same time. In order to meet the user's requirements, in the debugging process, the two tool holders are placed in two mode groups. Since only one MCP control panel and one HHU handheld unit are selected, how to solve the MCP and HHU in two channels The switching in the middle becomes an important part of the machine debugging.