how to do fifo in labview?

[devchander]

Hi Thomas  and Nishant,

Thomas, thank you for explaining what i meant to say with more clarity.

Nishanth, hope this solves your problem

Regards

Dev

[becktho]

Dev - no reason to say thank you. We were just two tasks running in parallel.

[devchander]

[Nishant]

Hiii Dev,

            I am back again for your help.

            These are the good options, but it doesnt seems working for me,coz what i want is to first put the 10 sec's record inside the file and then after, do the fifo for only one second's record, mean when we start fifo, at that time,1st sec's data should be deleted from file and 11th sec's data should be inserted below the 10th sec's record. so this doesnt seems to work for me, any ideas abiut this.?

Thanks,

Nishant

[devchander]

Hi Nishant,

Tell me if i have understood u right.

The file contains first 10 seconds data and the 11th second's data is replaced each time a new data set is obtained

Is it so?

regards

Dev

[Nishant]

Ya Dev,

                  But with somewhat differently,when the 11th second's data comes into the file at that time the first second's data will be deleted, mean the file will contain 10 seconds data everytime, but with the FIFO concept, that the data of the first second will be removed and all the data will be shifted one second up and the last second's data will be inserted at the last index of the file. Here actually 10 is n sec, user can enter any of the value betn 1 to 60, and i will compare it with the counter, and whenever program starts, i ll first write all the data upto n sec into the file and after n secs complete, i will start to do fifo for each 1 sec's data.

Thanks,

Nishant

[devchander]

Hi Nishant,

The attached VI does the file saving as u wanted

Just set the number of rows ( say 5)

once it saves 5 rows, it starts saving the next second's data in the 5th row and puhses the previous row data to one row before and discards the data in the 0th row.

Hope this solves your problem

Regards

Dev

[Nishant]

Thanks Dev,

                         This will work for me nnow, ill check all the things when i ll once implement it with our another concept of file write, and if anything doesnt work, i ll com back to you.

 Thanks,

Nishant

[becktho]

Hi Dev

Could you post it as LV7.0 as well?

[devchander]

Hey Nishant,

glad to be of help

Regards

Dev