Instrument Control (GPIB, Serial, VISA, IVI)

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Agilent 34970A scan

dear

i have Agilent 34970A

  I have these canal to san them

101 :temperature 

102: solar irradiance fix

103: solar irradiance tracker

104 current DC

105 current DC

106 current DC

107 current DC

108 Voltage DC

110 Voltage DC

114 Voltage DC

115 Voltage DC

the problem the last chanl 114 and 115 display a fixed vaue (false value)

you find attached the file of the program

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Message 1 of 19
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Hello

I see no channel 114 or 115 in the list that is default on the front panel.

So do they end up in the scan list?

And a short lesson:

Instead of checking the length of a string, you can directly check for empty string in the comparison palette.

greetings from the Netherlands
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Message 2 of 19
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can you please correct it and resend it to me?

I haven't understood your response

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Message 3 of 19
(395 Views)

I can send the correction for the simpler check on an empty string.

Will do this tomorrow.

 

But you have to fill in the correct channels yourself.

After you filled in the correct channels go to edit and select make current values default.

Save the file and sent it again.

After that I will change the select on an empty string.

 

greetings from the Netherlands
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Message 4 of 19
(385 Views)

I can send the correction for the simpler check on an empty string.

Will do this tomorrow.

 

But you have to fill in the correct channels yourself.

After you filled in the correct channels go to edit and select make current values default.

Save the file and sent it again.

After that I will change the select on an empty string.

 

greetings from the Netherlands
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Message 5 of 19
(380 Views)

Layachi_Zaghba_0-1709631136012.jpegLayachi_Zaghba_1-1709631150550.jpeg

 

I configure 114 and 115 in the front panel but the value is already constant not variable which represents Vdc 3 and Vdc 5

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Message 6 of 19
(362 Views)

Hello

This is the picture of the front panel of the vi and these controls are not constants but editable on the front panel and do not refer to channel 114 or 115 but all to 105!

 

 

AlbertGeven_0-1709669029122.png

Your assumption that locals on the block diagram are constants is wrong.

 

It is possible that you change these values to 114 and 115 before running the program but, you have to make sure that the front panel controls are correct.

 

I'll wait for your answer. My simple update on empty string can wait because the influence of that is almost zero on your program.

 

greetings from the Netherlands
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Message 7 of 19
(345 Views)

I corrected it, but it is already the same error

the chanal 101 to 108 right value

but 110 , 114 and 115 false value

Layachi_Zaghba_0-1709669988950.jpeg

 

Layachi_Zaghba_1-1709670004743.jpeg

 

Layachi_Zaghba_2-1709670014997.jpeg

 

 

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Message 8 of 19
(342 Views)

Hi

So we just have to step back and what hardware cards do you have plugged in in which slots?

Or is this all preconfigured and worked before?

greetings from the Netherlands
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Message 9 of 19
(331 Views)

this channel works very well with Agilent software

but this error is just in the LabVIEW interface (110 114 and 115)

 

 

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Message 10 of 19
(330 Views)