Instrument Control (GPIB, Serial, VISA, IVI)
Not able to have visa to write to text file
Solved!
@Stephenyoung wrote:
There is a RFS150 strain gauge, TS621 amplifier, analog input PCMCIA card, then power supply and display (DPM 501). I am not sure what it all consist of because it was all assembled then handed to me. It is all supposed to be connected using DASYlab, but I have no experience so I recommended LabVIEW.
An analog input PCMCIA card? Is the amplifier wired to that?
And since you mentioned DASYlab, you are likely using a Measurement Computing card and should be using the ULx driver.
@Stephenyoung wrote:
Yes, I believe it is also wired to that. Do I just need to install that driver?
I don't know what your card is, so I cannot say that driver will work. I was just guessing due you being told it was to be used with DASYlab.
Seriously, you need to stop and just figure out exactly what your black box here is. Figure out exactly what all devices involved are and exactly how they are wired. From there, we can give better advice.
@Stephenyoung wrote:
What exactly do you need to know? I have listed everything that is connected and all the information I know. No one else knows much about it that I am aware of.
What is the model of the Analog Input card? Who built it? Did it come with a driver? How sure are you of what is wired where?
You kept saying that the output of the amplifier goes to a RS232. Are you referring to an actual serial port on your computer or it is just a 9-pin connector going into something else? It makes no sense at all that the output of the amplifier goes straight to a serial port. That amplifier that you listed earlier has nothing to do with RS232. You need an Analog to Digital converter of some sort for the computer to read the data.
@Stephenyoung wrote:
The TS621 hooks into the RS232 and then it outputs to a 9pin female that I have hooked to a 9 pin male to USB cable.
I think that the TS621 is used to output the electrical signal form the strain gauge. Could it be possible there there isn't an actual converter to change the signal?
This is what we were trying to get to. A DB-9 connector does not mean RS232. In fact, RS232 was actually based on a DB-25. So it looks like you just have an analog output from the box. You will need a DAQ to read the voltages. For a cheap NI DAQ, the USB-6000 should work.
