NULL character through TCP

[singith.ab]

I am trying to send a NULL character to my instrument through TCP but have been unsuccessful. Can I send a NULL character with LabVIEW

[altenbach]

You can send anything. Show us some code so we can see what you are doing. And please explain the word unsuccessful, it is way too vague. (Do you get an error? Do you get a different character? Do you get nothing? Timeout? What is the instrument? Does sending other characters work? , etc.)

[singith.ab]

I've attached my VI herewith. I'm able to send a string to my hardware but I need each command to end with an ASCII NULL character. For example if I want to send a command  "home" the command should be "home\0". The way the hardware is receiving it is as a slash "\" and zero "0" instead of an ASCII "\0". IS there anyway I can resolve this issue? Thank you very much 

[RavensFan · Accepted solution]

Your command doesn't show in your VI.  I assume that it is something you entered it in the "Program" string control?

That is set for "normal" display.  So if you entered a \0, then you are sending a liter backslash and zero.

Change that to \code display and reenter your command.  Then \0 will represent the null character.

[JB]

[Yamaeda]

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@RavensFan wrote:

So if you entered a \0, then you are sending a liter backslash and zero.

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How much is a liter of backslash? 😄

/Y

[RavensFan]

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@Yamaeda wrote:

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@RavensFan wrote:

So if you entered a \0, then you are sending a liter backslash and zero.

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How much is a liter of backslash? 😄

/Y

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LOL.  I guess I cut off the "al" to make "literal".

Current market rate is about a $1.55. 

[Krapfen]

Hi,

in most situation, a string always end up with "\0" to tell the machine the string is finished, which means, in any case you send a string in labview, the machine will receive a NULL or "\0", but never showed.

I suppose you want to make something trick to show or to make sure there are different strings you sended, so you want to show "\0" between different strings.

If that's what you want, you can just add "\0", which is two character, and you send the "NULL" successfully.

To be more specific, if you send "This is example string\0" you will be actually sending something like "This is example string\0" + NULL, and the message "This is example string\0" will be showed completely.

If this is not what you want, please be more specific.

-melonetern

[singith.ab]

This solution worked perfectly! thanks!