06-26-2015 07:57 AM
1. The example seems to have a GPIB address(which is 5) in my case, and has a raw data and waveform graph. When I run it, it doesn't show any error code. and doesn't even show anything.
2. The text file has time in x-axis and amplitude in y-axis. I have modified it a bit(attached) anfd built the signal.
3. I have this DC supply for amplification. The signal generated through Labview is in mV and mAmp range. So i need to amplify it. 6642A amplifies it 4 times.
Since I have the GPIB, I suppose I don't need the DAQ and DAQ won't amplify too. Correct me if I am wrong.
06-26-2015 07:57 AM
Text file modified. used for signal generation.
06-26-2015 08:09 AM
06-26-2015 08:27 AM
1. It's written in the manual that it does amplify. That is precisely the reason I have bought it. And I am sure about its amplification. Moreover it's input range is from 0 to -5V. Yes negative range. Output range 0-20v. 0-10A.
2. I could not understand what you have suggested by passing the voltage array and time delay step. It would be more beneficial if you help by pictures of vi or directly through vi.
3.Yes, I've set the voltage manually and checked it in oscilloscope. It's working.
I have attached one image of the program. Have a look and please suugest any corrections.
06-26-2015 09:23 AM
06-26-2015 09:29 AM
06-26-2015 09:49 AM
07-06-2015 02:08 AM
By amplification I meant, if I'm sending a signal in 1mv range, it gives output of 4mv.
Now, the sample prgrogram which I found (GPIB with Visa), I run it and it shows the error -1073807339(image attached). Timeout expired, I searched for the forum and see some answers but none of much help.
I made up a program using the driver blocks and and seems to be running but I'm still unable to see the signal/voltage from output when I try to see in oscilloscope and multimeter.
The image of the vi is also attached. Please have a look.
Thanks.
07-06-2015 02:40 AM
07-06-2015 07:36 AM
Yes. I am expecting arbitrary signal with this code, unable to. I don't understand how come I'm sending only one point? I can see the signal in front panel but cannot see in oscilloscope.
As said by you, I did give a constant of 2 and changed the code(a bit). The blocks used here are of Agilent 6642A. But Still when I am trying to measure the output in multimeter, I cannot see the desired 2V.
The first code was just an example. Sorry for that.
P.S. - Now I am losing my hopes. I am started to think whether it's even possible to give desired output(signal arbitrary) through the dc supply via GPIB from labview! I don't think it's possible. Is it possible sir?