E3631A电源Error -410

您是否已发送SYST：REM命令将设备置于远程模式？
您需要使用RS-232执行此操作。
马特



     以下为原文

  Have you sent a SYST:REM command to put the unit into remote mode?  You need to do this with RS-232.

Matt

是。
我能够发送命令就好了。
这只是我遇到问题的疑问。
你是说在每个查询之前发送SYST：REM吗？



     以下为原文

  Yes.  I am able to send commands just fine.  It is only queries I am having a problem with.  Are you saying to send SYST:REM just prior to each query?

不，你只需要发送一次。
我建议在初始化后将其作为第一个命令。



     以下为原文

  No you just need to send it once.  I would recommend doing it as your first command after initialization.

结果我发生了两件事。
第一个是我发送了一个额外的换行符（“ n”），我的命令忘记了SerialPort.Writeline会自动为该命令添加换行符。
在我这样做之后，我能够在大多数时间查询仪器，但仍然偶尔会出现错误。
我发现在将SerialPort.RtsEnable和SerialPort.DtrEnable属性设置为true后，我不再收到任何错误。
另外，在读取缓冲区之前，我需要在发送查询后放置200 ms的等待语句。
否则，它将是空的。
100毫秒工作，但不一致/可靠，所以我增加到200毫秒。
现在一切都通过RS232运行良好。



     以下为原文

  Turns out I had two things going on.  The first was that I was sending an extra line feed ("n") with my commands forgetting that SerialPort.Writeline automatically appends a line feed to the command.  After I did this, I was able to query the instrument most of the time, but was still getting errors now and then.  I found that after setting the SerialPort.RtsEnable and SerialPort.DtrEnable properties to true that I no longer received any errors.  Additionally, I needed to put a 200 ms wait statement after sending queries before reading the buffer.  Otherwise, it would be empty.  100 ms worked, but not consistently/reliably, so I increased it to 200ms.  Everything is working well now via RS232.

亲爱的莫斯曼我遇到了同样的问题-400错误代码，当我想要读取电流或电压时总会发生这种情况。
我可以在屏幕上设置所有参数，如电压和最大电流，也可以通过RS232串口打开/关闭系统。
当我按下按钮时，插入简单的当前读取命令如下：serialPort.writeline（“CURR：READ：DC？”）;
serialPort.writeline（ “ r”）;
Thread.sleep代码（200）;
currentstring = serialPort.readline（）;
serialPort.writeline（ “ r”）;
textbox1.text = currentstring;
虽然我像你一样设置了SerialPort.RtsEnable和SerialPort.DtrEnable属性，但我仍然得到同样的错误。
这是outputbuffer的原因吗？
在发送每个查询之前清除缓冲区吗？
如果是，哪个命令清除缓冲区？
我尝试插入“CLEAR 705”，但它没有用。



     以下为原文

  Dear Mossman

I have been in trouble with the same problem -400error code that always happens when I want to read current or voltage. 

I can set all parameters like the voltage and maximum current on the screen and also open/close the system by RS232 serial. 

When I press the button I inserted simple current read command follows:

serialPort.writeline("CURR:READ:DC?");
serialPort.writeline("r");
thread.sleep(200);
currentstring = serialPort.readline(); 
serialPort.writeline("r");
textbox1.text = currentstring;

Although I set the SerialPort.RtsEnable and SerialPort.DtrEnable properties like you , I still get the same error. 

Is it becuse of outputbuffer? Do you clear the buffer before you sent every query? If so, which command clears the buffer? 
I tried the insert "CLEAR 705" but it did not work.