GPIB Interface with 4-bit Hex Machine

[aeroguy]

I am updating an old wind tunnel, and we are planning to use Labview to drive the stepper motors for the sting. The system we need to interface with to do that is a Modulynx 4-bit Hex system made by Superior Electronics. Right now, the GPIB writes to the system with no errors, but the sting does not move. We think the problem is that the output from the GPIB must be in that format (4-bit Hex). Is there any way to set the GPIB to output in that format, or to check that? Or any other suggestions for interfacing really old hardware with Labview.

[Brian_Powell]

I'm not sure what you mean by "4-bit hex" format. Please clarify.

You are likely going to need to use some of the string formatting functions in LabVIEW to create the right kind of string, and then pass that to GPIB or VISA Write.

Exactly what functions to use depends on what you mean by 4-bit hex.

Brian