Instrument Control (GPIB, Serial, VISA, IVI)

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"I am using HP 33120A wave form generator and LabVIEW . I am giving a trigger to the wave form generator using G

PIB. I want to read the data from the GPIB after the operation complete. I am using *opc? command, which should set the status register bit after the completion of the operation, but this is not working. How to know that the Operation is complete"-Thanks."I am using HP 33120A wave form generator and LabVIEW . I am giving a trigger(Generating an arbitrary burst) to the wave form generator using GPIB. I want to read the data from the GPIB after the operation complete(i.e. after the burst). I am using *opc? command, which should set the status register bit after the completion of the operation, but this is not working. How to know that the Operation is com
plete"-Thanks. I will appreciate if you can send me the VI.
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PIB. I want to read the data from the GPIB after the operation complete. I am using *opc? command, which should set the status register bit after the completion of the operation, but this is not working. How to know that the Operation is complete"-Thanks.The NI-488 global status variables ibsta, ibcnt, and iberr is what you are looking for. Look into the 4882 help file for details. Also NI-Spy, http://www.ni.com/support/gpib/nispy.htm, is a good debug util. There is a website that lists common GPIB error codes and solutions. You may check there for some things to try. You'll find the link at ni.com > Support > Troubleshooting > Installation/Getting Started > GPIB, titled "GPIB Error Codes and Common Solutions".

You could find a driver for this instrument at http://www.ni.com/devzone/idnet/default.htm . If it's not listed there, it leaves you with one of a couple options. First, I would like you to submit a request for this driver at: http://zone.ni.com/idnet97.nsf/instrumentdriverrequest/
We develop dri
vers based on demand and popularity so the more requests we have for it, the greater the possibility that we will develop one.
If you would like to try developing your own instrument driver (or modify the existing one), we have documentation, model instrument drivers, and driver templates to help at :
http://www.ni.com/devzone/idnet/development.htm
We also have a syndicate of third party vendors that specialize in National Instruments' products and services. Some of the vendors specialize in driver development. I would suggest contacting one of the Alliance members at:
http://www.ni.com/alliance

Hope this helps.
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PIB. I want to read the data from the GPIB after the operation complete. I am using *opc? command, which should set the status register bit after the completion of the operation, but this is not working. How to know that the Operation is complete"-Thanks.Hi,

I have the same problem. I want the instrument to tell me when it has finished sweeping before i read its memory. Are there any good links on how to use status registers? Thank you.
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