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Time out error when try to retrieve values using 34970A

Question asked by Jluisfer on Oct 29, 2019
Latest reply on Oct 30, 2019 by Jluisfer

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Good morning. I'am using 34970A data aquisition with benchvue software using the RS232 interface. I'am using the test flow to ask the user how many measures he want to do and the interval between measures.

First I ask user the number of times we want make the measures and I put his aswer in variable number

Then I ask the time between measures and I put the answer in variable time

Then I do the following sequence in test flow:

CONF:VOLT:DC (@110,111,112)

ROUT:SCAN (@110,111,112)

TRIG:SOUR TIMER

TRIG:TIM time

TRIG:COUN number

value=READ?

When I run the sequence the data aquisition change the number of scans and the time between them to the one I choose, but I have one timeout error in benchvue software in this line of code "value=READ?"

I try to replace the value=READ? with this:

INIT

value=FETC?

But I have the same timeout error

What I'am doing wrong?

Thank you

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w0dz

Oct 29, 2019 9:43 AM

Do you have the DAQ app running at the same time you are trying to send/receive SCPI to the instrument from Test Flow? That doesn't work. Try closing the app and use only SCPI, or use only the app, dragging and dropping available functions into Test Flow. You can get at some of the data you might want by using the Data Grid Gadget in the graphics page. It returns a lot of info.

Brian

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Jluisfer @ w0dz on Oct 30, 2019 4:38 AM

First of all thank you for your quick reply. I try using only the test flow and I have the same time out problem. Then I make the sequence that I send in my picture and it works, but I have one big problem. As you can see in the output result I have for each records with values in V01,V02,v03 10 records with only time and step(I choose 1 second interval between measures). I don't need this lines. There is any way to make one sequence where I don't have this empty records?

Also I try in first time to have the export data inside the loop but every time that the export block is called the explorer window where the file is is poping up.There is any way to prevent this?

Also I make a sugestion for the next updates in test flow. I think that it will be interesting if we can control the count and duration loop with variables.

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w0dz Oct 29, 2019 9:43 AM
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Do you have the DAQ app running at the same time you are trying to send/receive SCPI to the instrument from Test Flow? That doesn't work. Try closing the app and use only SCPI, or use only the app, dragging and dropping available functions into Test Flow. You can get at some of the data you might want by using the Data Grid Gadget in the graphics page. It returns a lot of info.

Brian
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- Jluisfer @ w0dz on Oct 30, 2019 4:38 AM
  Mark Correct
  Correct Answer
  First of all thank you for your quick reply. I try using only the test flow and I have the same time out problem. Then I make the sequence that I send in my picture and it works, but I have one big problem. As you can see in the output result I have for each records with values in V01,V02,v03 10 records with only time and step(I choose 1 second interval between measures). I don't need this lines. There is any way to make one sequence where I don't have this empty records?
  Also I try in first time to have the export data inside the loop but every time that the export block is called the explorer window where the file is is poping up.There is any way to prevent this?
  Also I make a sugestion for the next updates in test flow. I think that it will be interesting if we can control the count and duration loop with variables.
  Like • Show 0 Likes0
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Time out error when try to retrieve values using 34970A

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