对于Modbus通讯来说，怎么样方便的测试通讯很有价值。用自己写的代码很麻烦。这个测试软件，基本上解决了一般的Modbus通讯的测试问题。值得推广。-Modbus communication for example, how to facilitate the testing of communication very valuable. Write their own code is cumbersome. The test software is basically to solve the

非常实用的串口虚拟仪器软件，为破解版，我用了半年多，基本没什么问题，挺好用的。 把串口程序先在虚拟串口上测试一下，检查出问题，解决掉，再用实际串口去测，比较方便，会节省些开发时间.-Very useful serial virtual instrument software for the cracked version, I used more than six months, basically no problem, very good use. The serial program

modbus rtu的通讯协议，经过工程项目测试完全没有问题，请放心使用吧！-modbus rtu communications protocol test, after the project is completely no problem, please assured use it!