S7-400发送至led显示开关转换器TCP/IP至RS232S7-400 send to led display witch converter TCP/IP to RS232

你好

Hi 

我在工厂有一个LED显示屏，由RS232端口控制。机器速度显示在上面。

I have an LED display at the plant, controlled by the RS232 port. The machine speed is displayed on it.

最近，速度显示器出现故障，我不知道它是如何配置的。

Recently, the speed display has failed and I have no idea how it is configured.

我唯一知道的是，LED显示屏工作正常，通信是在TCP/IP转换器之后进行的，该转换器是RS232/422/485 TCP-1000型。而且它肯定能与PC一起工作。

The only thing I know is that the LED display works and the communication is after the TCP / IP converter is RS232 / 422/485 model TCP-1000. And it definitely works with a PC.

机器速度是否可能通过S7-400发送至TCP-1000转换器。

Is it possible that the machine speed is sent via S7-400 to the TCP-1000 converter.

如果是这样的话，请告诉我是怎么做的，因为我想修复损坏的地方。

If this is it, please hint at how it is done, because I want to repair the damage.

非常感谢你的帮助

Thank you very much for help

齐多克

Zidoch

你好，Zidoch；

Hello Zidoch;

如果您可以访问制造商名称和型号（并且型号是最新的），则在Web上查找第三方设备上的数据和手册相对容易。

It is relatively easy to locate data and manuals on 3rd-party equipment on the Web if you have access to the manufacturer name and model number (and the model is current).

例如，由于您的屏幕截图中提供了相关信息，因此下面是您的转换器的基本说明手册：

For example, here is a basic instruction brochure for your converter, since the information was available in your screenshot: 

GC-ATC-1000用户手册-电网连接

GC-ATC-1000 User's Manual - Grid Connect

更重要的是，对于您的问题，我们需要访问您显示器的手册，以查看协议详细信息。通常，这些动态显示器使用字符串表示您想要显示的消息，带有您想要在消息中引入的变量的符号（例如：可变Line_Speed），以及与显示器电子设备接口的控制代码。如果是彩色的，还有其他符号可以理解颜色动态是如何控制的，等等。

More importantly for your problem we would need access to the manual for your display, to see the protocol details. Normally these dynamic displays use strings for the messages you want to show, with a symbol for a variable you want to introduce in the message (ex: variable Line_Speed) and control codes to interface with the display's electronics.. If it is colour, there are other symbols to understand how the color dynamics are being controlled, etc.

根据我的经验，在PC上编程这些显示器要容易得多。它们通常带有专门的软件，您需要在PLC程序中模拟这些软件。

It has been my experience that programming of these displays is much easier on a PC. They often come with specialized software that you would need to emulate in your PLC program.

因此，请提供有关显示器品牌和型号的详细信息，以便我们尽力帮助您。

So please provide details on the make and model of your display, so we may try to help you out.

希望这能有所帮助，

Hope this helps,

丹尼尔·查蒂尔

Daniel Chartier

你好

Hello,

除了Daniel的帖子之外，Daniel建议还有一些http访问（通过web浏览器）或cfg SW，您可以通过它们设置Adapter的选项。在大多数情况下，您通过以太网端口和已知IP或自动检测序列将PC连接到适配器。然后您可以查看适配器的cfg，它设置了什么IP和端口，以及串行通信的重要设置-这是您需要查找的-速度、数据位、奇偶校验…然后您将知道还设置了什么串行设置。通过一个简单的解决方案（在您查看了关于消息格式的显示文档之后），您可以省略显示器，将PC连接到PLC（使用合适的USB到串行转换器RS-232），打开串行端口运行一些串行应用程序，并监听输入的消息。然后，您可以查看这些消息（我希望这里只有PLC发送消息，显示器监听而不是应答），并与Daniel建议的文档进行比较。然后您可以轻松检测如何显示值

little addition to Daniel's post, as Daniel sugested there is also some http access (via web browser) or cfg SW via which you can set options for Adapter. For most cases you connect your PC to adapter via Ethernet port and with known IP or automatic detection sequence. Then you can look to cfg of adapter, what IP and Port it has set and also important settings for serial communication - this is what you need look for - speed, data bits, parity... Then you will know what serial settings are also set. With one simple solution (after you have look to display documentation about message format) you can omit your display and connect PC to your PLC (with suitable USB to serial converter RS-232), running some serial application with opened your serial port and listen what messages are incomming. You can then look to that messages (I expect here only PLC sends messages and Display listen not answer) and compare with documentation as Daniel sugested. Then you can easy detect how to display value.