自己写的PLC控制程序，语言类别：VisualBasic6.0，PLC单片机对象：DVP-14SS，经过测试可以用，当初的功能主要是想控制PLC的某一或全部输出口，其它型号没有测试，可能不适用，有想做此型号端口控制的，不妨下载源码参考。-Write your own PLC control procedures, language classes: VisualBasic6.0, PLC microcontroller object: DVP-14SS, the test can be used, the original main function is to control the output of a PLC or all of the other models not tested, might not applicable, have wanted this model port control, may wish to download the source code for reference.