Modbus TCP/IP访问问题Modbus TCP/IP Access Problem

我在附件中进行了配置。

I made configuration in attach.

My Old桌面运行Modbus Simulator将值发送到S7 1212C（假设发送一个“实际温度室”）

My Old desktop running Modbus Simulator to send value to S7 1212C (Let's say sending an "Actual Temperature Room")

我的新笔记本电脑可以读取从桌面发送的数据，并可以通过西门子自己的Web服务器页面（192.168.xx.xx）将值写入S7 1212C（比如写入“最高温度设定点”）。

My new laptop can Read data that send from my desktop and can write value to S7 1212C (Let's say writing a "Maximum Temperature Set Point") via Siemens's own Web Server Page (192.168.xx.xx).

我刚刚使用了一个动态浏览器来访问西门子自己的web服务器（Chrome）。

I just used ordynary browser to access Siemens's own web server (Chrome).

它工作完美无误。“我的桌面”还可以同时读取两个值（实际值和设定值），也可以使用web浏览器（Chrome或其他）访问西门子自己的web服务器。

It works flawlessly without a glitch. My Desktop can also read both value (Actual and Setpoint) at the same time can also access to Siemens's own web server using web browser (Chrome or other).

问题是。我只能在旧桌面上运行Modbus模拟器。

The problem is. I can only running Modbus Simulator in my old Desktop.

当我尝试在笔记本电脑中运行Modbus模拟器时，Modbus连接断开（无连接）。

When I try to run Modbus Simulator in my Laptop, the Modbus connection is out (no connection).

即使我仍然可以通过台式机或笔记本电脑上的浏览器，或通过ping 192.168.xx访问西门子自己的服务器。xx，S7 1212C仍然响应正常。

Even I can still reach Siemens's own server _ from my browser in desktop or laptop, or by ping 192.168.xx.xx, the S7 1212C still responded normally.

如果Modbus连接已断开，我将无法再访问，即使我将Modbus模拟器运行回我的桌面。我必须先重置它（关闭它），然后它才能正常工作。

If the Modbus connection is already out, I cannot access anymore, even I running Modbus Simulator back to my Desktop. I have to reset it first (turn it off), and then it works normaly.

有什么建议吗？

Any suggestion?

你好

Hello,

误导有关PC和笔记本IP的重要信息。若其中一个客户机正确地从服务器断开连接，然后第二个客户机连接到服务器，则看不到问题。两者必须使用相同的服务器IP和端口值。所以在我看来，问题在于仍未正确断开与服务器的连接或IP/端口的连接。

mising important infos about PC and Notebook IPs. Don't see problem if one of Client is correctly disconnect from server and then second Client cpnnect to Server. Both must use same IP and Port value of Server. So in my opinion problem is with still not correctly disconnection from Server or IP/Port problem.

您正在使用哪个MB Sim

Which MB Sim you're using?