Instrument Control (GPIB, Serial, VISA, IVI)

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SCPI Commands

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Hello,

 

I try to communicate with SCPI commands to an instrument.

 

I've done a visa command to send it instruction.

 

The instrument is composed with 4 slots, and the slot 1-0 had 4 channel

 

So with the following VI, I succed to communicate with the instrument with sending the following instruction " lins10 : READ : SCALar : POW: DC?"

The instrument returns me the value of the slot 1-0 Channel 1

 

ti read the other channel  (C1 to C4), i've try to send: différents commands:

lins10: SOURce C1: READ: SCALar: POW: DC

lins10: SENSe C1: READ: SCALar: POW : DC

lins10: FETCh C1: READ: SCALar: POW: DC

lins10: INPut C1: READ: SCALar: POW: DC

 

with différents name: C1;  Channel1 ; 1 etc...

 

 

so someone should tell me how can I do , or the good command to use please.

 

Thank you for your responses

 

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What instrument are you trying to talk to?


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It's a modular Platform. The device is an EXFO; model IQS 600

 

iqs 600 is a Windows 10 Platform.

 

Data acquisition card is a IQS 1740. This is a card to measure optical power transmitted in optical fiber câble.

 

you can see this instrument in this photo

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Accepted by topic author 968012

I think you want to do the following..

 

LINS10:READ1:SCAL:POW:DC?

LINS10:READ2:SCAL:POW:DC?

LINS10:READ3:SCAL:POW:DC?

LINS10:READ4:SCAL:POW:DC?

 

I'd make a subvi that takes both the logical instrument position (eg. 10) channel number (1-4) as an input, appends it to the READ, then appends the other part and querries the instrument and returns the result.

 

Same thing if you use FETCH..

LINS10:FETC1:SCAL:POW:DC?

 

Those other commands you list don't seem to be valid SCPI commands for the instrument.

 

Hope that helps.

Craig

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Thank you  for your help

 

The following instruction works ;  LINS10 : READ 3: SCAL : POW : DC ?  and with read 1-4

 

you solved my problem and i can advance in my project

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