modbusx 上位机读写测试软件DEMO 的源代码，有VC和VB的。可做参考。-modbusx DEMO PC to read and write test software source code, and VB-VC. Do reference.

北京双诺公司的AC6112数据采集卡的开发源代码，里面包含VC,VB,DELPHI等几种演示代码，对于需要对PCI总线 数据采集卡进行二次开发的程序人员具有重要的参考意义-Beijing' s double Connaught AC6112 data acquisition card developed source code, which includes VC, VB, DELPHI several demo code, etc., for the need for PCI-bus d

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