GPIB/VISA trigger sequence

[Adam_Stouffer]

Hello all. I'm working with a piece of equipment to take readings via GPIB and have the basics working but want to take triggered readings. As of right now after a number of repeated readings something happens and every third read is a null. So triggered is definitely the way to go. 

What I don't understand is the sequence of GPIB or VISA events to make this happen. From what I gather you would write the parameters to the instrument and say triggered mode. Then send a trigger command, wait for SRQ and then finally read? But that isn't working too well. All I'm looking for is which commands and the correct order. Thanks.

[GerdW]

Hi Adam,

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@Adam_Stouffer wrote:

As of right now after a number of repeated readings something happens and every third read is a null.

What I don't understand is the sequence of GPIB or VISA events to make this happen. From what I gather you would write the parameters to the instrument and say triggered mode. Then send a trigger command, wait for SRQ and then finally read? But that isn't working too well.

All I'm looking for is which commands and the correct order.

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Generic answer for your generic question: read the manual of your device to learn about it's triggering options (and the correct order of commands)…

Other comments on your message:

• Please be more specific with your question!
• What is that "something", that happens while reading data from your device?
• Which (GPIB/VISA) "events" are you talking about?
• In which way your VI "isn't working too well"? So your VI actually is working!?

[RTSLVU]

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@Adam_Stouffer wrote:

Hello all. I'm working with a piece of equipment to take readings via GPIB and have the basics working but want to take triggered readings. As of right now after a number of repeated readings something happens and every third read is a null. So triggered is definitely the way to go. 

What I don't understand is the sequence of GPIB or VISA events to make this happen. From what I gather you would write the parameters to the instrument and say triggered mode. Then send a trigger command, wait for SRQ and then finally read? But that isn't working too well. All I'm looking for is which commands and the correct order. Thanks.

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Well the correct order to send commands would be in the instruments programming manual.

About "after a number of repeated readings something happens and every third read is a null".

Post your code as that makes absolutely no sense at all.