Re : Re: Re : Re: Re : Re: Re : Re: Re : Re: code error -1073807339 ethernet

[moralofa]

Hi,

I ried your command but still not work. So why I still have the same code error  ?

thanks

[Dennis_Knutson]

The manual is not much help. You can try putting a space after the question mark. My guess is that the syntax would be the same as the FETCH:FIELD query. Did that query work? Are there any programming examples that came with the instrument? What about asking the instrument maker to clarify the query?

[moralofa]

Hi,

I tried FETCH:FIELD query. It didn't work.  I tried putting a space after the question mark without any results.

Here another programming manuel of the same familly..

[Dennis_Knutson]

I don't knwo what else to try. You should contact the isntrument vendor.

The syntax for a fetch as defined by SCPI is :

FETCh[:<function>]? <parameters>[,<source list>]

Parameters are allowed in the FETCh? query. They may be defaulted from the right by

omitting them, or in any other position by substituting the keyword DEFault. DEFault must

be accepted as a parameter for this query. If a parameter is specified, it is used in the

calculation if applicable. If the parameter is invalid because it conflicts with the acquired

data, an error -221 shall be generated. If the instrument receives a parameter which is

unexpected (too many parameters), it shall process the query and return the data. The

unexpected parameter shall be ignored, and the “command warning” bit of the “data

QUEStionable” status register shall be set.

PH018

A special parameter type is the <source list>. The <source list> is syntactically a <channel

list> as described in “Syntax and Style.” The purpose of the <source list> is to specify the

physical port which is the source of the measurement. For example, (@2) would specify that

the measurement should occur on channel 2. Multiple channels can be specified by using

multiple channels in the channel list. For example, (@1,3:5,9) specifies that measurements

are to be taken on channels 1,3,4,5, and 9. SCPI does not specify if the acquisitions are

simultaneous or sequential. A function which requires multiple channels, such as time

interval, would specify each channel as a separate list. For example, (@1),(@2) would

specify a two-channel measurement between channels 1 and 2. A multiple channel, multiple

measurement is specified by using multiple channels in each of the lists. For example,

(@1,2),(@3,4) specifies a pair of two-channel measurements, the first between channels 1

and 3 and the second between channels 2 and 4.

[Steve.Briggs]

Hello,

I've been very busy the past 2 days but in reading what Dennis has said I can only agree with him.

The initial manual to any instrument is a brief summary of each section/command.  Before releasing the entire manual they breakdown documents of each section.  By contacting the instrument provider and questioning a precise area, in your case the FETCH? query, they can send the documents pertaining to that one section.  Most of the time they are outdated but contain very minor, yet helpful, things they didn't feel necessary to include in the main manual.

Through my own experiences I've at times received articles written on the instrument, numerous documents pertaining to my area of interest, sample data from successful runs that they received through testing, and hard calculations that are executed through the instrument.

Best of luck