10-06-2015 07:18 PM
I have an old instrument (magnetometer) with an old computer used for control and DAQ. The instrument is in very good shape, but the computer is very old (early 90s) and uses a proprietary software to communicate with the instrument via GPIB. I would like to replace the computer with a new one and write my own DAQ program in LabVIEW, but I do not have the manual of the instrument and do not know the GPIB commands.
Is there any way I can connect another computer to the GPIB interface and 'record' the commands used by the DAQ software from the old computer while the program is running?
I read a little bit about NI I/O Trace (formerly NI Spy), but I am not sure if that can work. When I connect two PCs to the instrument, there seems to be some conflict between the two GPIB cards connected to it, I can only 'see' it from one computer.
Thanks!
Solved! Go to Solution.
10-06-2015 08:27 PM
10-06-2015 09:48 PM
Thank you Dennis for the quick reply. Can you give me some more details about this '+' model controller? Is this a piece of software or additional hardware?
10-06-2015 10:29 PM
10-06-2015 10:41 PM
Thanks Dennis. Just to clarify - if I had a GPIB Interface and Analyzer board on my new computer (and running NI I/O Trace), I could just connect it to the GPIB board interface of the old computer and ‘record’ the GPIB commands that are sent to the instrument. Is that correct?
10-06-2015 10:54 PM
01-18-2018 07:52 PM
Let me see if I understood well, It´s because I have almost the same situation...
To see the sent commands I need to keep running the proggram in the old computer and read it from another computer and the I/O Trace btu both connected to the same GPIB bus. Is it correct?
PD: I´m new at this forum
01-19-2018 11:40 AM
I believe what they were referring to above is using the GPIB Analyzer through a GPIB+ interface to get these low level commands from the old computer. Here is a link with more information about the GPIB Analyzer
http://digital.ni.com/public.nsf/allkb/848F027883BD6429862571B8001DFEDC
Since this forum post is more than 2 years old, I would recommend starting a new thread with your specific issue so that it gets more visibility in the community!