External HW diagnostic flag for GPIB port

[GM1981]

Hi to all!

I need to make a fast check on the GPIB port of my National GPIB board.

So, I would like to build an external HW diagnostic tool that can help me to fast know if the port is working or not.

My question is:

Is possible to build an external tool to test if the GPIB external comunication is working?
Pratically I would like to build a Flag to be connected in the port every time I need to check it...


Thanks in advance for your answer,

Giuseppe.

[DiegoF]

Hi,

The information in GPIB bus is transfered using digital signals. The GPIB signals use inverted logic: logical 0 is > 2.0V (High State), logical 1 is < 0.8V (Low State). The following article shows the GPIB connector:

http://pong.ni.com/public.nsf/websearch/9BB2417C09C4D08786256BE9007D7B55?OpenDocument

Most of the line can be controlled by the NI-488.2. You could perform a basic elctrical test on the board.

Of course, the ultimate test is to have a simple device that could respond to a simple query. NI offers an Instrument Simulator for training purposes, that you could use as a test for your GPIB interfaces.

http://sine.ni.com/apps/we/nioc.vp?cid=10763〈=US

DiegoF.