使用图形用户界面控制ENA E5070B出现错误

亲爱的安捷伦代表我正在尝试在matlab中创建一个应用程序来控制网络分析仪ENA E5070B。
然而，许多问题突然出现并推迟了发展。
所以我请求帮助。
以下是我的问题：1 - 我在Matlab（图形界面）中创建了一个GUI，我试图从E5070B读取S参数，然后生成图形S11（db）x频率（GHz）以​​及表格。
我使用以下命令（Matlab命令调用SCPI命令）执行此操作：E5070 = visa（'agilent'，'GPIB0 :: 17 :: INSTR'）;
E5070.InputBufferSize = 8388608;
E5070.ByteOrder ='littleEndian';
fopen（E5070）;
fprintf（E5070，'10 OUTPUT 717'）;
fprintf（E5070'：CALC1：PAR1：DEF S11'）;
SP = str2num（fscanf（E5070））;
情节（SP，'b'）;
等一下;
网格;
fclose（E5070）;
删除（E5070）;
清除E5070;
错误消息：“警告：读取失败：VISA：发生超时”2 - 我不知道是否可能，但我会每100毫秒截取E5070B的屏幕截图。
你能发送一个可能的命令序列吗？
3 - 在我的GUI（图形界面）中，有一些字段供用户输入起始频率，停止频率和扫描点数。
我对如何使用Matlab GUI输入将转到SCPI命令的信息有疑问。
如何在SCPI命令中输入数据？
4 - 最后一个问题是关于向一个端口（es，ed，er）读取系统错误。
我正在使用以下序列命令：E5070 = visa（'agilent'，'GPIB0 :: 17 :: INSTR'）;
E5070.InputBufferSize = 8388608;
E5070.ByteOrder ='littleEndian';
fopen（E5070）;
fprintf（E5070，'10 CALL Exec_error_term（@ Agte507x，“READ”，“ED”，Ch $，5，Nop，1.1，Stok（*））'）;
fprintf（E5070，'20 CALL Exec_error_term（@ Agte507x，“READ”，“ED”，Ch $，6，Nop，2.2，Stok（*））'）;
ed = str2num（fscanf（E5070））fclose（E5070）;
删除（E5070）;
清除E5070;
错误消息：“警告：读取失败：VISA：发生超时”提到的所有功能都是从GUI按钮的回调中调用的。
我很感谢技术支持和关注。
谢谢Daniel，（电气工程系硕士 - 硕士）



     以下为原文

  Dear Agilent's representatives


I'm trying to create an application in Matlab to control a network analyzer ENA E5070B. However many questions are popping up and delaying development. So I ask for help.

Here are my questions :

1 - I create a GUI in Matlab (graphical interface) and I'm trying to read S parameters from E5070B and then generate a graph S11 (db) x Frequency (GHz) and also a table.  

I did this using the following commands (Matlab commands calling SCPI commands) :


E5070 = visa ('agilent', 'GPIB0 :: 17 :: INSTR');
E5070.InputBufferSize = 8388608;
E5070.ByteOrder = 'littleEndian';
fopen (E5070);
fprintf (E5070, '10 OUTPUT 717 ');
fprintf (E5070 ': CALC1: PAR1: DEF S11');
SP = str2num (fscanf (E5070));
plot (SP, 'b');
hold on;
grid on;
fclose (E5070);
delete (E5070);
clear E5070;

Error message : "Warning: Unsuccessful read: VISA: A timeout occurred"


2 - I don't know if it's possible, but I would take a screenshot of the E5070B every 100 ms. Could you send a
possible sequence of commands to do this?



3 - In my GUI (graphical interface), there are fields for the user to enter the start frequency, stop frequency
and the number of sweep points. I have questions about how to use Matlab GUI to enter with an information
that will go to a SCPI command.  How to enter data in SCPI commands ?


4 - The last question is about reading systemic errors to one port (es, ed, er). I'm using the following sequence
commands:

E5070 = visa ('agilent', 'GPIB0 :: 17 :: INSTR');
E5070.InputBufferSize = 8388608;
E5070.ByteOrder = 'littleEndian';
fopen (E5070);
fprintf (E5070, '10 CALL Exec_error_term (@ Agte507x, "READ", "ED", Ch $, 5, Nop, 1.1, Stok (*)) ');
fprintf (E5070, '20 CALL Exec_error_term (@ Agte507x, "READ", "ED", Ch $, 6, Nop, 2.2, Stok (*)) ');
ed = str2num (fscanf (E5070))
fclose (E5070);
delete (E5070);
clear E5070;


Error message : "Warning: Unsuccessful read: VISA: A timeout occurred"

All the functions mentioned were called from callbacks of GUI pushbuttons. I am grateful for the technical support and attention.



Thank you,

Daniel (student of electrical engineering - Masters)