评论5

• 

  ababab

  楼主 2016/4/20 10:36:28

  用MODBUS通信协议来写就OK了.贝加莱 plc x20为MODBUS从站,上位机为MODBUS主站

• 

  aaing

  楼主 2016/4/21 9:18:50

  那你用C语言按MODBUS的通信协议格式来写一段C的程序不就OK了,下位机本来就支持MODBUS从站的通信,你不是用来下载程序吧,如果不是,这是最好的办法呀.

• 

  ababab

  楼主 2016/4/22 20:12:41

  是支持modbus,但是要求是上位机用C#写tcp/ip的tcpclient端，plc做下位机写tcpserver端用c的socket库，功能程序都已经写好transfer到plc里，现在要做个上下位的通讯。上位机客户端发命令，下位机做服务器端接收并解析后给反馈信息给上位机。automation studio里有ASTCP库和ethsocket库，感觉好像要用ASTCP。知道您好像特别熟悉贝加莱PLC，可不可以向您请教请教这方面的知识？因为要做，又不是特别懂，先谢了。

• 

  atmupkeep

  楼主 2016/5/3 19:47:02

  在AS3.0  有具体例子，主要看帮助，帮助的例子越来越多！

  AsTCP - Examples

  Executable examples are available for this project in the form of a package.

   

  Theme	Description	Package name
  TCP Communication	Example of simple TCP client/server communication. A section of data is exchanged between two controllers via the Ethernet interface.	LibAsTCP1_ST

   

  The sample package can be inserted into the Automation Studio project by the name of the package.

• 

  atmupkeep

  楼主 2016/5/3 19:47:37

  AsUDP - Examples

  Executable examples are available for this project in the form of a package.

   

  Theme	Description	Package name
  UDP Communication	Example of simple TCP client/server communication. A section of data is exchanged between two controllers via the Ethernet interface.	LibAsUDP1_ST

   

  The sample package can be insertedinto the Automation Studio project by the name of the package