prasan

thanks Ulrich

i'll try doing that.

Hi Prasan:

115 kBaud through the serial port is no problem, I use that as a matter of routine?

When you say that you're setting the higher baud rate in "the system"-- it almost sounds like you are setting it in the windows control panel for the serial port. If so, try setting it from within LabView instead.

If that's not the problem, post your code if you can, we may be better able to help.

Also, keep in mind that you can cheat on the maximum length for a serial connection at lower speeds, but perhaps not at higher speeds-- but my bet is a software issue that we might be able to help on.

Best Luck, Louis

Hi louis,

I have increased the baud rate of my yokogawa oscilloscope and the baud rate

through visa option of labview to 57600 from 9600, but there is no appreciable

change in the speed of the data acquisition.I am sending my vi , please suggest the

required changes to be done.

What scope are you using? Does it have an ethernet interface?

Also, try to use binary data transfer and then convert to DBL's in the LV code, that will help the data transfer speed.

Optimize the code to avoid sending the same command repeatedly to reduce bus traffic. Without looking at the code, can't say much more; these are just some general pointers.

Neville

hi Neville,

I have increased the baud rate of my yokogawa oscilloscope and the baud rate

through visa option of labview to 57600 from 9600, but there is no appreciable

change in the speed of the data acquisition.I am sending my vi , please suggest the

required changes to be done

What scope are you using? Does it have an ethernet interface?

Also, try to use binary data transfer and then convert to DBL's in the LV code, that will help the data transfer speed.

Optimize the code to avoid sending the same command repeatedly to reduce bus traffic. Without looking at the code, can't say much more; these are just some general pointers.

Neville

hi Neville,

I have increased the baud rate of my yokogawa oscilloscope and the baud rate

through visa option of labview to 57600 from 9600, but there is no appreciable

change in the speed of the data acquisition.I am sending my vi , please suggest the

required changes to be done

Download File:post-5784-1156485685.vi

Download File:post-5784-1156485970.vi

Download File:post-5784-1156486221.vi

HI friends,

am interfacing with a digital oscilloscope(rs 232) and i got lv7.1.the acquisition was very slow.i tried changing the baud rate(from 9600 to something higher) in the scope and in the system but a VISA timeout error occured.is there a way to increase the speed of the acquisitoin.of course the GPIB is a better choice, but using rs232 is it still possible to increase the speed?

thankyou

Depends on the manufacturer...

...Try to find it here

the manufacturer was a local one in India , and hasn't given any drivers.

how to go about making one on my own?

hi,

am using a linear motorised stage(xy positioner) in an expt. i need lv drivers - rs232.

where can i find em?

thankyou

hello everybody,

am a 21yr old. am doing my masters in photonics in india.my project involves controlling the yokogawa digital oscilloscpe using labview.i know very little abt labview.am having a problem in dynamically collecting data.

i need to control a translation stage and a yokogawa simultaneously.as the stage moves with a detector on it, which is inturn connected to the yokogawa,the data from the scope needs to be taken dynamically - frame by frame. i got lv7.1.

i'll be grate ful if someone can guide me a bit.

love

prasan

hello everybody,

am a 21yr old. am doing my masters in photonics in india.my project involves controlling the yokogawa digital oscilloscpe using labview.i know very little abt labview.am having a problem in dynamically collecting data.

i need to control a translation stage and a yokogawa simultyaneously.as the stage moves the with a detector on it, which is inturn connected to the yokogawa,the data from the scope needs to be taken dynamically - frame by frame. i got lv7.1.

i'll be grate ful if someone can guide me a bit.

love

prasan