Instrument Control (GPIB, Serial, VISA, IVI) | Forum profile

For information on what a driver is and how to use one, refer to the links on the Instrument Driver Network .   The driver does have an example that shows how to use some of the functions. Make sure you have context help turned on so that you get a description of each VI and the controls on the front panels. Most importantly, use the instrument manual to get a thorough understanding of how the instrument works. Operate it manually You would...

I've never tried this but it should be possible.-- Tie the thermistor to the feedback of a ring oscillator.  The resistance of thermistor will vary with temperature. Therfore the ring oscillator frequency will change. Your PC probably has a MIC input record the tone and adjust the heat as needed.      

Hi,   Do the boards still show up in Device Manager? What’s the serial numbers of the two serial cards? What version of NI Serial do you have? Can you post a screen shot of the NI Ports tool?  

Hi   Functions for these values do exist in the driver. Send your first program and ask more specific what does not work  

I did try everything from switching to different USB ports to using powersupply in the PCIe card. It still did work. It was very   interesting that when i holded the output signal wire and ground wire in my fingers, it worked fine. Thus, i think i should add a   resistor between these wires to drop the current on the output signal. Please let me know if you have any suggestion.  

Now I just need to build the contraption. I'm thinking to get a couple of gears, and attach a tight-fitting removable sleeve to the hot plate knob, and I think I've got the idea for the mount design -- won't firm it 'til I've all the supplies in hand. An electronics-minded classmate suggested the ~$10 DC "hobby motor" over the cheaper one, and I think I can pin it through parallel.   I know one power supply...

Instead of using a Tektronix TDS210 oscilloscope, I tried using an NI Instrument Simulator hardware which has a GPIB interface. I was able to connect to this successfully. This seems to indicate that Agilent and NI drivers can co-exist on the same system (no problems thus far!). I think the issue might be the physical connection between the TDS210 and the USB-GPIB converter. I will look into this. Thanks for all your help!   Dinesh

Yes. In fact, the driver as it was written before I modified it to try the viWaitOnEvent call utilized Do..Loops with a finite timeout while waiting for the MAV bit in the status byteto be set high. This seemed to work very well (status byte routinely returned a value of 48, which is MAV TRUE & Event status summary) with the exception of errors being encountered every once in a while for which I have not been successfuly in...

Hi Kees,   Thanks for doing that. I am having trouble downloading it though. I have managed to get the whole manual in 3mb size directly from Heraeus. I can send you a copy if you proivde an email address.    kind regards,    Jon

Hi Jon,   Just tried to download it (from another location then the upload) and it just works fine.   But you have a copy, that's important. I would like to receive your copy. It is probably better then my scanned version and smaller.  You can send it to  keeswe<at>zonnet.nl   Regards, Kees