How do i take certain text strings and turn them into specific ASCII commands?

[Gillyme]

I am able to control hardware using ASCII code. These strings can be up to 10 letters long and can take much of my time to give commands to this hardware. Is there a way that i can type in one ASCII key in order to correspond with a longer ASCII string. For example, one command is aIP1000S12R. Is it possible to program labview to read one letter and to convert it to this longer string?So i could type P into my program but the program would read aIP1000S12R?

This might be a ridiculous question, but i am new to labview

Thanks

[GerdW]

Hi Gillyme,

what about using a case structure?

Wire the string control (your input) to the selector of the case structure, create a case for each "command" you want to have and output the needed string from the case. You can make the case selector case-independent, if needed...

Message Edited by GerdW on 02-10-2009 06:49 PM

[Dennis_Knutson]

Why even try to enter the cryptic "P". Why don't you use the model of all instrument drivers and have some some logically named controls on the front panel and build the string dynamically? For example, if you were programming a power supply, all you would need on the front panel is a numeric control that represents the output voltage. the program would then format a string in any manner it needed to and send that.

[Gillyme]

Could you give me an example Dennis.This solution would be ideal

[Dennis_Knutson]

At the Instrument Driver Network, there is a section at the bottom. Click on the 'Learn to Build Instrument Drivers' tab and you will see a lot resources on drivers. You also have a shipping example. Go to your Instrument I/O>Instrument Drivers palette and look at the Agilent 34401.