How to collect correct data format from visa read

[VMI]

Hi,

I'm new in labview. I'm making a labview software to control and collect data for ASL F900 Thermo Bridge. But I don't know how to get correct data format from visa read.

Example:

The Correct data format is: +0.123456789E\r\n  (15 bytes)

but sometimes data format which i receive is 56789E\r\n+0.1234 or .123456789E\r\n0

I attached F900 user guide!

[GerdW · Accepted solution]

Hi VMI,

but sometimes data format which i receive is 56789E\r\n+0.1234 or .123456789E\r\n0

When initializing the serial port you should enbale the TermChar and leave it's default setting for "0x0A" = LF = "\n". Then just read something like 99 bytes per VISARead: you will receive full messages (after the first message).

[VMI]

Hi GerdW,

It's work, thank you so much.

One other question, How to increase precision (number of digits after dot or comma of floating number) of data which export to excel by write to measurement file.vi?

default is six digits after dot, but I want to increase to 9 digits?

[Sam_Sharp]

You can't, you will need to use a different function for writing your data to the file which allows you more control over the format of the data. The write to spreadsheet file in the File I/O palette allows you to specify the precision of the data or you can use the raw file functions to format the data in exactly the way you want.

[crossrulz]

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@VMI wrote:

Hi GerdW,

It's work, thank you so much.

One other question, How to increase precision (number of digits after dot or comma of floating number) of data which export to excel by write to measurement file.vi?

default is six digits after dot, but I want to increase to 9 digits?

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It would help if you supplied some code so we could see how you are saving the data.