Hi! I have to send control commands to the IR light source evaluation kit of ICx Photonics via Labview 9.0. So I tried the example VI 'Basic Serial Write and Read.vi'. To send a command I've to write a capital letter then its value and finally a carriage return. For example P102[cr]. Because of the carriage return I set the termination char to '13' (dezimal) or 'D' (hexadezimal). Now Labview and the evaluation kit know when a command ends. The problem is, that I only get back strange letters and '?' as answers. What means one part either Labview or the evalution kit doesn't understand the commands. Since all other settings are right I guess that Labview doesn't send with the emulation ANSI? But when the problem is ANSI then I don't understand why I get the right answer when I send a single 'I' for the firmware version. Is it possible, that only the first letter is interpreted right? Is there another termination char that I may try? Til now I've tried [cr], [CR], [lf], [LF], \r, \n, combinations of them, none of them,... The hardware is ok. I could get the desired results with the HyperTerminal.

I'm running out of ideas. Hyperterminal allows you to set a delay between characters. Maybe that's what you need? The code to do that is shown below. Message Edited by Dennis Knutson on 11-30-2009 11:27 AM

Instrument Control (GPIB, Serial, VISA, IVI)

How to send Photonics serial commands?

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Oh my God! That's it! Thank you very much! You're my saviour 🙂

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Instrument Control (GPIB, Serial, VISA, IVI)

How to send Photonics serial commands?

Re: How to send Photonics serial commands?