control lock-in amplifier EG&G 5104 with gpib-usb

[biazon.acoustics]

Does anyone know how to control a old lock in amplifier EG&G  5104 with a gpib-usb?, i can comunicate with my pc, but the amplifier doesn't response my comands....

[GerdW]

Hi biazon,

i can comunicate with my pc, but the amplifier doesn't response my comands....

So you can communicate, but the device doesn't respond? What kind of communication is this?

What have you tried so far?

The manual describes the commands your device expects, so send them and check for reactions of the device!

[biazon.acoustics]

this is the Labview project.  I'm having difficulty with GPIB/USB communication and Labview. Futhermore, this model does not have the option of frequency acquisition command like the SR830 model. I need to run a program that does frequency scanning. I would be grateful for some help.

[GerdW]

Hi biazon,

why do you talk about "GPIB/USB" and name this VI "GPIB sample" when the VI clearly uses a serial communication with your device???

 I'm having difficulty with GPIB/USB communication and Labview.

Which difficulties do you have?

this model does not have the option of frequency acquisition command like the SR830 model. I need to run a program that does frequency scanning

Use a different device when you need this option…

Or do the "frequency scanning" by setting parameters on your device programmatically. Reading the device manual will tell you the commands you need to use!