10-26-2020 05:20 PM
I hope this is not too stupid a question, but I want to start as simple as possible.
I control other (i.e., Tek, HP) GPIB-enabled instruments using a Prologix usb-to-GPIB
dongle and send ***simple ascii strings***. E.g., something like ":channel1:input 50Ohm"
to set the input impedance of my HP scope. The Prologix dongle has a command ++addr <n>
to direct commands to an instrument with GPIB address n where I have previously set the
address of the instrument with dip switches.
There are no "drivers" involved. I just send ascii strings to/from the addressed instrument.
I have a pxi frame with an 8212 card and a dmm card 4060. I want some help on a similar
scheme for talking to the dmm in the pxi frame.
1. How do I set the address of the frame?
2. Can I send/receive simple ascii strings to the addressed instrument using my Prologix converter?
Thanks so much!
Anxious to get started ...
10-26-2020 10:40 PM
PXI instruments come with specific drivers and you have to use them to control them. Of course, you can implement a translator from GPIB to call specific driver APIs for the instrument.
To make it simpler, PXI chassis cannot work on their own, they would need a computer (either an embedded controller or an external computer connected over MXI). Though you have a GPIB card and DMM card, they can't operate without a computer to attach to. This attachment has to happen over the PXI bus (kind of PCIe slot) and not over GPIB.