罗克韦尔产品22B-B017H204

22B-B017H204

22B-B017H204

用我们的组态软件，用PLC本身的通讯电缆和电脑相连接，在线模拟看看工程是否通讯的上。可以用个数值输入部件或是开关，对其操作，看看关掉模拟器之后再开在线模拟后之前的操作是否还在，是否直接提示NC。（NC和之前操作没有写下去即为没有通上）具体的做法：

（1）PLC跟电脑要通过RS232进行连接。有的PLC有RS232的接口，有的没有，没有的可以通过转接头接到电脑上。

（2）新建一个简单的工程。放两个元器件，一个数值显示，一个数值输入。地址设置PLC里面的地址。

（3）工程参数设置要跟PLC里面的设置一样。

（4）点击在线模拟功能

这样子做就可以很明显查看PLC能不能跟PC通信上。如果可以通信上就可以排除PLC方面的问题，跟参数设置的问题。

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