页面历史记录

...

        读取数据：

        断开连接：

        3. 西门子对应的dde service，topic西门子对应的dde数据

       dde service: "machineswitch"

        topic:  "NCDDE"

        address:

"/Bag/State/opMode",
"/Channel/ProgramPointer/progName",
"/Channel/State/AcProg",
"/Channel/MachineAxis/actToolBasePos[u1,1]",
"/Channel/MachineAxis/actToolBasePos[u1,2]",
"/Channel/MachineAxis/actToolBasePos[u1,3]",
"/Channel/Spindle/speedOvr",
"/Channel/MachineAxis/feedRateOvr",
"/Channel/State/rapFeedRateOvr[u1]"