Sending differentes instructions via RS232

[scab1984]

Hi,
Firstable sorry for my English, and thank you to google translate

I try to communicate with a receiver via the RS232 port.
Instructions to be sent are like that:

RF8507000
MD2
AT1
BW1
 
My concern is in sending the data in the "visa write".
In fact, I found a solution with the use of an "End of Line Constant" at the end of each command,
but this slowed sending information.
When I send a single frame, the transfer is made immediately, but this approach does not satisfy me, because I want to send several different information.
I thought only send frames that change in the buffer, but I do not see how.
Do you think that my track is good? Or do you have another solution?

[nyc_(is_out_of_here)]

there are gobs of posts on this topic including the following

http://forums.ni.com/t5/LabVIEW/How-do-i-program-for-data-acquisition-using-RS-232-on-Labview/td-p/6...

[Dennis_Knutson]

Your approach is not at all correct. You do not want to be constant transmitting. I would suggest you look at the event structure so a command is sent only when a control value changes.

LabVIEW 101

[scab1984]

Thank you for you answers.

Unfortunately, I have the base development System. (LV 2011 SP1)

The "Event Structure" and "value change event" are with the Full version. Do you think I can do something with another VI ?

Thank you

[nyc_(is_out_of_here)]

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@scab1984 wrote:

Thank you for you answers.

Unfortunately, I have the base development System. (LV 2011 SP1)

The "Event Structure" and "value change event" are with the Full version. Do you think I can do something with another VI ?

Thank you

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Huh????

Event Structure is most definitely in the Full version.

[scab1984]

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nyc a écrit :

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Huh????

Event Structure is most definitely in the Full version.

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Yes it is in the Full version, but I have the Base version

[zerotolerance]

I haven't worked with base development System but I'll be surprised if they're not included.

[zerotolerance · Accepted solution]

Just in case however, attached is a variation of your code. While what I've provided might be of some use to you, this really is a crude way of doing things. But I hope you can see the various methods that you could employ in order to do what you want.

[crossrulz]

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@zerotolerance wrote:

I haven't worked with base development System but I'll be surprised if they're not included.

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The event structure has not been in the base version.  That changed with LV2012.

[scab1984]

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zerotolerance a écrit :

Just in case however, attached is a variation of your code. While what I've provided might be of some use to you, this really is a crude way of doing things. But I hope you can see the various methods that you could employ in order to do what you want.

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Ok, thank you, I'll check this Vi tomorow.