SCPI Commands

[968012]

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

[crossrulz]

What instrument are you trying to talk to?

[968012]

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

[cstorey · Accepted solution]

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

[968012]

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