E5071C网络分析仪的Matlab编程

您好，我正在尝试将通过GPIB连接的E5071C网络分析仪编程到带有matlab的PC。
这是我第一次编程远程控制设备，所以我遇到了一些困难。
我的目标是在手动设置和校准后，能够通过matlab脚本进行4端口自动循环测量。
阅读该仪器的网络帮助和一些在线学习，我能够做一些部分。
希望它能做到我所期待的，但无论如何我无法保存测量结果。
成功连接设备后，这就是我正在做的事：fprintf（g，'ABORT'）;
/ *中止最终的测量并将触发器设置为空闲fprintf（g，'TRIG：SOUR BUS'）;
/ *通过gpib命令fprintf设置触发器生成（g，'INItiATE：IMMEDIATE'）;
/ *设置启动时间fprintf（g，'TRIG：SING'）;
/ *生成触发器并执行测量fprintf（g，'* OPC？'）;
/ *查询测量状态（用于继续脚本的结果位）fprintf（g，'：MMEMory：STORe：SNP：TYPE：S4P 1,2,3,4'）;
/ *选择4端口试金石格式fprintf（g，'：MMEMory：STORe：SNP：FORMat RI'）;
/ *选择实/虚格式fprintf（g，'：MMEMory：STORe：SNP：DATA D： test.s4p'）;
/ *保存数据最后一个保存数据的命令失败。
我尝试了几次更改包含文件名的字符串的方式，但我总是得到一个错误说错误的格式或缺少参数。
谁能给我一个关于我在哪里犯错误的线索？
代码的前一部分是否正确？
在此先感谢您的帮助。



     以下为原文

  Hello,
I'm trying to program a E5071C network analyzer connected via GPIB to a pc with matlab.
It's the first time I'm programming to remotely control a device so I'm facing some difficulties. My goal is to be able to do 4-port automatized cyclic measurements run by a matlab script after manual setting and calibration.
Reading the web help of the instrument and some exaple online, I was able to do some part of it. Hopefully it does what I am expecting, but anyway I'm not able to save measurements.

After succesfully connect with the device, this is what I'm doing:

fprintf(g, 'ABORT');   /* to abort eventual meaasurements and set the trigger to idle
fprintf(g, 'TRIG:SOUR BUS');   /*to set trigger generation via gpib command
fprintf(g, 'INITIATE:IMMEDIATE');   /* to set the initiation tate
fprintf(g, 'TRIG:SING');   /* to generate trigger and execute measurements
fprintf(g, '*OPC?');   /* query for status of measurements (result bit to be used to continue the script)
fprintf(g, ':MMEMory:STORe:SNP:TYPE:S4P 1, 2, 3, 4');   /*to select 4 port touchstone format
fprintf(g, ':MMEMory:STORe:SNP:FORMat RI');   /* to select real/imaginary format
fprintf(g, ':MMEMory:STORe:SNP:DATA D:test.s4p');   /* to save data

The last command, to save data, fails. I tried several times changing the way the string containing the file name is written but I always get an error saying wrong format or missing parameter.
Can anyone give me a clue on where I'm doing a mistake? Is the previous part of the code correct?
Thanks in advance for any help.